ETH Price: $2,323.28 (+2.77%)

Transaction Decoder

Block:
18839814 at Dec-22-2023 07:11:11 AM +UTC
Transaction Fee:
0.003775835 ETH $8.77
Gas Used:
107,881 Gas / 35 Gwei

Account State Difference:

  Address   Before After State Difference Code
5.75694406078423574 Eth5.756947343933721005 Eth0.000003283149485265
0x378AB7B0...F2Bb4955F
0.343821605659236665 Eth
Nonce: 1692
0.340045770659236665 Eth
Nonce: 1693
0.003775835
0xF3eB387A...148f0Fe00

Execution Trace

TransparentUpgradeableProxy.c14c9204( )
  • PriceFeedsAdapterStaderEthxWithRoundsV2.updateDataFeedsValues( dataPackagesTimestamp=1703229050000 )
    • Null: 0x000...001.c56a02cc( )
    • Null: 0x000...001.a9de2cd1( )
      updateDataFeedsValues[RedstoneAdapterBase (ln:1292)]
      File 1 of 2: TransparentUpgradeableProxy
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)
      pragma solidity ^0.8.0;
      import "../utils/Context.sol";
      /**
       * @dev Contract module which provides a basic access control mechanism, where
       * there is an account (an owner) that can be granted exclusive access to
       * specific functions.
       *
       * By default, the owner account will be the one that deploys the contract. This
       * can later be changed with {transferOwnership}.
       *
       * This module is used through inheritance. It will make available the modifier
       * `onlyOwner`, which can be applied to your functions to restrict their use to
       * the owner.
       */
      abstract contract Ownable is Context {
          address private _owner;
          event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
          /**
           * @dev Initializes the contract setting the deployer as the initial owner.
           */
          constructor() {
              _transferOwnership(_msgSender());
          }
          /**
           * @dev Throws if called by any account other than the owner.
           */
          modifier onlyOwner() {
              _checkOwner();
              _;
          }
          /**
           * @dev Returns the address of the current owner.
           */
          function owner() public view virtual returns (address) {
              return _owner;
          }
          /**
           * @dev Throws if the sender is not the owner.
           */
          function _checkOwner() internal view virtual {
              require(owner() == _msgSender(), "Ownable: caller is not the owner");
          }
          /**
           * @dev Leaves the contract without owner. It will not be possible to call
           * `onlyOwner` functions anymore. Can only be called by the current owner.
           *
           * NOTE: Renouncing ownership will leave the contract without an owner,
           * thereby removing any functionality that is only available to the owner.
           */
          function renounceOwnership() public virtual onlyOwner {
              _transferOwnership(address(0));
          }
          /**
           * @dev Transfers ownership of the contract to a new account (`newOwner`).
           * Can only be called by the current owner.
           */
          function transferOwnership(address newOwner) public virtual onlyOwner {
              require(newOwner != address(0), "Ownable: new owner is the zero address");
              _transferOwnership(newOwner);
          }
          /**
           * @dev Transfers ownership of the contract to a new account (`newOwner`).
           * Internal function without access restriction.
           */
          function _transferOwnership(address newOwner) internal virtual {
              address oldOwner = _owner;
              _owner = newOwner;
              emit OwnershipTransferred(oldOwner, newOwner);
          }
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts (last updated v4.5.0) (interfaces/draft-IERC1822.sol)
      pragma solidity ^0.8.0;
      /**
       * @dev ERC1822: Universal Upgradeable Proxy Standard (UUPS) documents a method for upgradeability through a simplified
       * proxy whose upgrades are fully controlled by the current implementation.
       */
      interface IERC1822Proxiable {
          /**
           * @dev Returns the storage slot that the proxiable contract assumes is being used to store the implementation
           * address.
           *
           * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks
           * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this
           * function revert if invoked through a proxy.
           */
          function proxiableUUID() external view returns (bytes32);
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts (last updated v4.8.3) (interfaces/IERC1967.sol)
      pragma solidity ^0.8.0;
      /**
       * @dev ERC-1967: Proxy Storage Slots. This interface contains the events defined in the ERC.
       *
       * _Available since v4.9._
       */
      interface IERC1967 {
          /**
           * @dev Emitted when the implementation is upgraded.
           */
          event Upgraded(address indexed implementation);
          /**
           * @dev Emitted when the admin account has changed.
           */
          event AdminChanged(address previousAdmin, address newAdmin);
          /**
           * @dev Emitted when the beacon is changed.
           */
          event BeaconUpgraded(address indexed beacon);
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts (last updated v4.7.0) (proxy/beacon/BeaconProxy.sol)
      pragma solidity ^0.8.0;
      import "./IBeacon.sol";
      import "../Proxy.sol";
      import "../ERC1967/ERC1967Upgrade.sol";
      /**
       * @dev This contract implements a proxy that gets the implementation address for each call from an {UpgradeableBeacon}.
       *
       * The beacon address is stored in storage slot `uint256(keccak256('eip1967.proxy.beacon')) - 1`, so that it doesn't
       * conflict with the storage layout of the implementation behind the proxy.
       *
       * _Available since v3.4._
       */
      contract BeaconProxy is Proxy, ERC1967Upgrade {
          /**
           * @dev Initializes the proxy with `beacon`.
           *
           * If `data` is nonempty, it's used as data in a delegate call to the implementation returned by the beacon. This
           * will typically be an encoded function call, and allows initializing the storage of the proxy like a Solidity
           * constructor.
           *
           * Requirements:
           *
           * - `beacon` must be a contract with the interface {IBeacon}.
           */
          constructor(address beacon, bytes memory data) payable {
              _upgradeBeaconToAndCall(beacon, data, false);
          }
          /**
           * @dev Returns the current beacon address.
           */
          function _beacon() internal view virtual returns (address) {
              return _getBeacon();
          }
          /**
           * @dev Returns the current implementation address of the associated beacon.
           */
          function _implementation() internal view virtual override returns (address) {
              return IBeacon(_getBeacon()).implementation();
          }
          /**
           * @dev Changes the proxy to use a new beacon. Deprecated: see {_upgradeBeaconToAndCall}.
           *
           * If `data` is nonempty, it's used as data in a delegate call to the implementation returned by the beacon.
           *
           * Requirements:
           *
           * - `beacon` must be a contract.
           * - The implementation returned by `beacon` must be a contract.
           */
          function _setBeacon(address beacon, bytes memory data) internal virtual {
              _upgradeBeaconToAndCall(beacon, data, false);
          }
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts v4.4.1 (proxy/beacon/IBeacon.sol)
      pragma solidity ^0.8.0;
      /**
       * @dev This is the interface that {BeaconProxy} expects of its beacon.
       */
      interface IBeacon {
          /**
           * @dev Must return an address that can be used as a delegate call target.
           *
           * {BeaconProxy} will check that this address is a contract.
           */
          function implementation() external view returns (address);
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts v4.4.1 (proxy/beacon/UpgradeableBeacon.sol)
      pragma solidity ^0.8.0;
      import "./IBeacon.sol";
      import "../../access/Ownable.sol";
      import "../../utils/Address.sol";
      /**
       * @dev This contract is used in conjunction with one or more instances of {BeaconProxy} to determine their
       * implementation contract, which is where they will delegate all function calls.
       *
       * An owner is able to change the implementation the beacon points to, thus upgrading the proxies that use this beacon.
       */
      contract UpgradeableBeacon is IBeacon, Ownable {
          address private _implementation;
          /**
           * @dev Emitted when the implementation returned by the beacon is changed.
           */
          event Upgraded(address indexed implementation);
          /**
           * @dev Sets the address of the initial implementation, and the deployer account as the owner who can upgrade the
           * beacon.
           */
          constructor(address implementation_) {
              _setImplementation(implementation_);
          }
          /**
           * @dev Returns the current implementation address.
           */
          function implementation() public view virtual override returns (address) {
              return _implementation;
          }
          /**
           * @dev Upgrades the beacon to a new implementation.
           *
           * Emits an {Upgraded} event.
           *
           * Requirements:
           *
           * - msg.sender must be the owner of the contract.
           * - `newImplementation` must be a contract.
           */
          function upgradeTo(address newImplementation) public virtual onlyOwner {
              _setImplementation(newImplementation);
              emit Upgraded(newImplementation);
          }
          /**
           * @dev Sets the implementation contract address for this beacon
           *
           * Requirements:
           *
           * - `newImplementation` must be a contract.
           */
          function _setImplementation(address newImplementation) private {
              require(Address.isContract(newImplementation), "UpgradeableBeacon: implementation is not a contract");
              _implementation = newImplementation;
          }
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts (last updated v4.7.0) (proxy/ERC1967/ERC1967Proxy.sol)
      pragma solidity ^0.8.0;
      import "../Proxy.sol";
      import "./ERC1967Upgrade.sol";
      /**
       * @dev This contract implements an upgradeable proxy. It is upgradeable because calls are delegated to an
       * implementation address that can be changed. This address is stored in storage in the location specified by
       * https://eips.ethereum.org/EIPS/eip-1967[EIP1967], so that it doesn't conflict with the storage layout of the
       * implementation behind the proxy.
       */
      contract ERC1967Proxy is Proxy, ERC1967Upgrade {
          /**
           * @dev Initializes the upgradeable proxy with an initial implementation specified by `_logic`.
           *
           * If `_data` is nonempty, it's used as data in a delegate call to `_logic`. This will typically be an encoded
           * function call, and allows initializing the storage of the proxy like a Solidity constructor.
           */
          constructor(address _logic, bytes memory _data) payable {
              _upgradeToAndCall(_logic, _data, false);
          }
          /**
           * @dev Returns the current implementation address.
           */
          function _implementation() internal view virtual override returns (address impl) {
              return ERC1967Upgrade._getImplementation();
          }
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts (last updated v4.8.3) (proxy/ERC1967/ERC1967Upgrade.sol)
      pragma solidity ^0.8.2;
      import "../beacon/IBeacon.sol";
      import "../../interfaces/IERC1967.sol";
      import "../../interfaces/draft-IERC1822.sol";
      import "../../utils/Address.sol";
      import "../../utils/StorageSlot.sol";
      /**
       * @dev This abstract contract provides getters and event emitting update functions for
       * https://eips.ethereum.org/EIPS/eip-1967[EIP1967] slots.
       *
       * _Available since v4.1._
       *
       * @custom:oz-upgrades-unsafe-allow delegatecall
       */
      abstract contract ERC1967Upgrade is IERC1967 {
          // This is the keccak-256 hash of "eip1967.proxy.rollback" subtracted by 1
          bytes32 private constant _ROLLBACK_SLOT = 0x4910fdfa16fed3260ed0e7147f7cc6da11a60208b5b9406d12a635614ffd9143;
          /**
           * @dev Storage slot with the address of the current implementation.
           * This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is
           * validated in the constructor.
           */
          bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
          /**
           * @dev Returns the current implementation address.
           */
          function _getImplementation() internal view returns (address) {
              return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
          }
          /**
           * @dev Stores a new address in the EIP1967 implementation slot.
           */
          function _setImplementation(address newImplementation) private {
              require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
              StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
          }
          /**
           * @dev Perform implementation upgrade
           *
           * Emits an {Upgraded} event.
           */
          function _upgradeTo(address newImplementation) internal {
              _setImplementation(newImplementation);
              emit Upgraded(newImplementation);
          }
          /**
           * @dev Perform implementation upgrade with additional setup call.
           *
           * Emits an {Upgraded} event.
           */
          function _upgradeToAndCall(
              address newImplementation,
              bytes memory data,
              bool forceCall
          ) internal {
              _upgradeTo(newImplementation);
              if (data.length > 0 || forceCall) {
                  Address.functionDelegateCall(newImplementation, data);
              }
          }
          /**
           * @dev Perform implementation upgrade with security checks for UUPS proxies, and additional setup call.
           *
           * Emits an {Upgraded} event.
           */
          function _upgradeToAndCallUUPS(
              address newImplementation,
              bytes memory data,
              bool forceCall
          ) internal {
              // Upgrades from old implementations will perform a rollback test. This test requires the new
              // implementation to upgrade back to the old, non-ERC1822 compliant, implementation. Removing
              // this special case will break upgrade paths from old UUPS implementation to new ones.
              if (StorageSlot.getBooleanSlot(_ROLLBACK_SLOT).value) {
                  _setImplementation(newImplementation);
              } else {
                  try IERC1822Proxiable(newImplementation).proxiableUUID() returns (bytes32 slot) {
                      require(slot == _IMPLEMENTATION_SLOT, "ERC1967Upgrade: unsupported proxiableUUID");
                  } catch {
                      revert("ERC1967Upgrade: new implementation is not UUPS");
                  }
                  _upgradeToAndCall(newImplementation, data, forceCall);
              }
          }
          /**
           * @dev Storage slot with the admin of the contract.
           * This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1, and is
           * validated in the constructor.
           */
          bytes32 internal constant _ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;
          /**
           * @dev Returns the current admin.
           */
          function _getAdmin() internal view returns (address) {
              return StorageSlot.getAddressSlot(_ADMIN_SLOT).value;
          }
          /**
           * @dev Stores a new address in the EIP1967 admin slot.
           */
          function _setAdmin(address newAdmin) private {
              require(newAdmin != address(0), "ERC1967: new admin is the zero address");
              StorageSlot.getAddressSlot(_ADMIN_SLOT).value = newAdmin;
          }
          /**
           * @dev Changes the admin of the proxy.
           *
           * Emits an {AdminChanged} event.
           */
          function _changeAdmin(address newAdmin) internal {
              emit AdminChanged(_getAdmin(), newAdmin);
              _setAdmin(newAdmin);
          }
          /**
           * @dev The storage slot of the UpgradeableBeacon contract which defines the implementation for this proxy.
           * This is bytes32(uint256(keccak256('eip1967.proxy.beacon')) - 1)) and is validated in the constructor.
           */
          bytes32 internal constant _BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50;
          /**
           * @dev Returns the current beacon.
           */
          function _getBeacon() internal view returns (address) {
              return StorageSlot.getAddressSlot(_BEACON_SLOT).value;
          }
          /**
           * @dev Stores a new beacon in the EIP1967 beacon slot.
           */
          function _setBeacon(address newBeacon) private {
              require(Address.isContract(newBeacon), "ERC1967: new beacon is not a contract");
              require(
                  Address.isContract(IBeacon(newBeacon).implementation()),
                  "ERC1967: beacon implementation is not a contract"
              );
              StorageSlot.getAddressSlot(_BEACON_SLOT).value = newBeacon;
          }
          /**
           * @dev Perform beacon upgrade with additional setup call. Note: This upgrades the address of the beacon, it does
           * not upgrade the implementation contained in the beacon (see {UpgradeableBeacon-_setImplementation} for that).
           *
           * Emits a {BeaconUpgraded} event.
           */
          function _upgradeBeaconToAndCall(
              address newBeacon,
              bytes memory data,
              bool forceCall
          ) internal {
              _setBeacon(newBeacon);
              emit BeaconUpgraded(newBeacon);
              if (data.length > 0 || forceCall) {
                  Address.functionDelegateCall(IBeacon(newBeacon).implementation(), data);
              }
          }
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts (last updated v4.6.0) (proxy/Proxy.sol)
      pragma solidity ^0.8.0;
      /**
       * @dev This abstract contract provides a fallback function that delegates all calls to another contract using the EVM
       * instruction `delegatecall`. We refer to the second contract as the _implementation_ behind the proxy, and it has to
       * be specified by overriding the virtual {_implementation} function.
       *
       * Additionally, delegation to the implementation can be triggered manually through the {_fallback} function, or to a
       * different contract through the {_delegate} function.
       *
       * The success and return data of the delegated call will be returned back to the caller of the proxy.
       */
      abstract contract Proxy {
          /**
           * @dev Delegates the current call to `implementation`.
           *
           * This function does not return to its internal call site, it will return directly to the external caller.
           */
          function _delegate(address implementation) internal virtual {
              assembly {
                  // Copy msg.data. We take full control of memory in this inline assembly
                  // block because it will not return to Solidity code. We overwrite the
                  // Solidity scratch pad at memory position 0.
                  calldatacopy(0, 0, calldatasize())
                  // Call the implementation.
                  // out and outsize are 0 because we don't know the size yet.
                  let result := delegatecall(gas(), implementation, 0, calldatasize(), 0, 0)
                  // Copy the returned data.
                  returndatacopy(0, 0, returndatasize())
                  switch result
                  // delegatecall returns 0 on error.
                  case 0 {
                      revert(0, returndatasize())
                  }
                  default {
                      return(0, returndatasize())
                  }
              }
          }
          /**
           * @dev This is a virtual function that should be overridden so it returns the address to which the fallback function
           * and {_fallback} should delegate.
           */
          function _implementation() internal view virtual returns (address);
          /**
           * @dev Delegates the current call to the address returned by `_implementation()`.
           *
           * This function does not return to its internal call site, it will return directly to the external caller.
           */
          function _fallback() internal virtual {
              _beforeFallback();
              _delegate(_implementation());
          }
          /**
           * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if no other
           * function in the contract matches the call data.
           */
          fallback() external payable virtual {
              _fallback();
          }
          /**
           * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if call data
           * is empty.
           */
          receive() external payable virtual {
              _fallback();
          }
          /**
           * @dev Hook that is called before falling back to the implementation. Can happen as part of a manual `_fallback`
           * call, or as part of the Solidity `fallback` or `receive` functions.
           *
           * If overridden should call `super._beforeFallback()`.
           */
          function _beforeFallback() internal virtual {}
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts (last updated v4.8.3) (proxy/transparent/ProxyAdmin.sol)
      pragma solidity ^0.8.0;
      import "./TransparentUpgradeableProxy.sol";
      import "../../access/Ownable.sol";
      /**
       * @dev This is an auxiliary contract meant to be assigned as the admin of a {TransparentUpgradeableProxy}. For an
       * explanation of why you would want to use this see the documentation for {TransparentUpgradeableProxy}.
       */
      contract ProxyAdmin is Ownable {
          /**
           * @dev Returns the current implementation of `proxy`.
           *
           * Requirements:
           *
           * - This contract must be the admin of `proxy`.
           */
          function getProxyImplementation(ITransparentUpgradeableProxy proxy) public view virtual returns (address) {
              // We need to manually run the static call since the getter cannot be flagged as view
              // bytes4(keccak256("implementation()")) == 0x5c60da1b
              (bool success, bytes memory returndata) = address(proxy).staticcall(hex"5c60da1b");
              require(success);
              return abi.decode(returndata, (address));
          }
          /**
           * @dev Returns the current admin of `proxy`.
           *
           * Requirements:
           *
           * - This contract must be the admin of `proxy`.
           */
          function getProxyAdmin(ITransparentUpgradeableProxy proxy) public view virtual returns (address) {
              // We need to manually run the static call since the getter cannot be flagged as view
              // bytes4(keccak256("admin()")) == 0xf851a440
              (bool success, bytes memory returndata) = address(proxy).staticcall(hex"f851a440");
              require(success);
              return abi.decode(returndata, (address));
          }
          /**
           * @dev Changes the admin of `proxy` to `newAdmin`.
           *
           * Requirements:
           *
           * - This contract must be the current admin of `proxy`.
           */
          function changeProxyAdmin(ITransparentUpgradeableProxy proxy, address newAdmin) public virtual onlyOwner {
              proxy.changeAdmin(newAdmin);
          }
          /**
           * @dev Upgrades `proxy` to `implementation`. See {TransparentUpgradeableProxy-upgradeTo}.
           *
           * Requirements:
           *
           * - This contract must be the admin of `proxy`.
           */
          function upgrade(ITransparentUpgradeableProxy proxy, address implementation) public virtual onlyOwner {
              proxy.upgradeTo(implementation);
          }
          /**
           * @dev Upgrades `proxy` to `implementation` and calls a function on the new implementation. See
           * {TransparentUpgradeableProxy-upgradeToAndCall}.
           *
           * Requirements:
           *
           * - This contract must be the admin of `proxy`.
           */
          function upgradeAndCall(
              ITransparentUpgradeableProxy proxy,
              address implementation,
              bytes memory data
          ) public payable virtual onlyOwner {
              proxy.upgradeToAndCall{value: msg.value}(implementation, data);
          }
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts (last updated v4.8.3) (proxy/transparent/TransparentUpgradeableProxy.sol)
      pragma solidity ^0.8.0;
      import "../ERC1967/ERC1967Proxy.sol";
      /**
       * @dev Interface for {TransparentUpgradeableProxy}. In order to implement transparency, {TransparentUpgradeableProxy}
       * does not implement this interface directly, and some of its functions are implemented by an internal dispatch
       * mechanism. The compiler is unaware that these functions are implemented by {TransparentUpgradeableProxy} and will not
       * include them in the ABI so this interface must be used to interact with it.
       */
      interface ITransparentUpgradeableProxy is IERC1967 {
          function admin() external view returns (address);
          function implementation() external view returns (address);
          function changeAdmin(address) external;
          function upgradeTo(address) external;
          function upgradeToAndCall(address, bytes memory) external payable;
      }
      /**
       * @dev This contract implements a proxy that is upgradeable by an admin.
       *
       * To avoid https://medium.com/nomic-labs-blog/malicious-backdoors-in-ethereum-proxies-62629adf3357[proxy selector
       * clashing], which can potentially be used in an attack, this contract uses the
       * https://blog.openzeppelin.com/the-transparent-proxy-pattern/[transparent proxy pattern]. This pattern implies two
       * things that go hand in hand:
       *
       * 1. If any account other than the admin calls the proxy, the call will be forwarded to the implementation, even if
       * that call matches one of the admin functions exposed by the proxy itself.
       * 2. If the admin calls the proxy, it can access the admin functions, but its calls will never be forwarded to the
       * implementation. If the admin tries to call a function on the implementation it will fail with an error that says
       * "admin cannot fallback to proxy target".
       *
       * These properties mean that the admin account can only be used for admin actions like upgrading the proxy or changing
       * the admin, so it's best if it's a dedicated account that is not used for anything else. This will avoid headaches due
       * to sudden errors when trying to call a function from the proxy implementation.
       *
       * Our recommendation is for the dedicated account to be an instance of the {ProxyAdmin} contract. If set up this way,
       * you should think of the `ProxyAdmin` instance as the real administrative interface of your proxy.
       *
       * NOTE: The real interface of this proxy is that defined in `ITransparentUpgradeableProxy`. This contract does not
       * inherit from that interface, and instead the admin functions are implicitly implemented using a custom dispatch
       * mechanism in `_fallback`. Consequently, the compiler will not produce an ABI for this contract. This is necessary to
       * fully implement transparency without decoding reverts caused by selector clashes between the proxy and the
       * implementation.
       *
       * WARNING: It is not recommended to extend this contract to add additional external functions. If you do so, the compiler
       * will not check that there are no selector conflicts, due to the note above. A selector clash between any new function
       * and the functions declared in {ITransparentUpgradeableProxy} will be resolved in favor of the new one. This could
       * render the admin operations inaccessible, which could prevent upgradeability. Transparency may also be compromised.
       */
      contract TransparentUpgradeableProxy is ERC1967Proxy {
          /**
           * @dev Initializes an upgradeable proxy managed by `_admin`, backed by the implementation at `_logic`, and
           * optionally initialized with `_data` as explained in {ERC1967Proxy-constructor}.
           */
          constructor(
              address _logic,
              address admin_,
              bytes memory _data
          ) payable ERC1967Proxy(_logic, _data) {
              _changeAdmin(admin_);
          }
          /**
           * @dev Modifier used internally that will delegate the call to the implementation unless the sender is the admin.
           *
           * CAUTION: This modifier is deprecated, as it could cause issues if the modified function has arguments, and the
           * implementation provides a function with the same selector.
           */
          modifier ifAdmin() {
              if (msg.sender == _getAdmin()) {
                  _;
              } else {
                  _fallback();
              }
          }
          /**
           * @dev If caller is the admin process the call internally, otherwise transparently fallback to the proxy behavior
           */
          function _fallback() internal virtual override {
              if (msg.sender == _getAdmin()) {
                  bytes memory ret;
                  bytes4 selector = msg.sig;
                  if (selector == ITransparentUpgradeableProxy.upgradeTo.selector) {
                      ret = _dispatchUpgradeTo();
                  } else if (selector == ITransparentUpgradeableProxy.upgradeToAndCall.selector) {
                      ret = _dispatchUpgradeToAndCall();
                  } else if (selector == ITransparentUpgradeableProxy.changeAdmin.selector) {
                      ret = _dispatchChangeAdmin();
                  } else if (selector == ITransparentUpgradeableProxy.admin.selector) {
                      ret = _dispatchAdmin();
                  } else if (selector == ITransparentUpgradeableProxy.implementation.selector) {
                      ret = _dispatchImplementation();
                  } else {
                      revert("TransparentUpgradeableProxy: admin cannot fallback to proxy target");
                  }
                  assembly {
                      return(add(ret, 0x20), mload(ret))
                  }
              } else {
                  super._fallback();
              }
          }
          /**
           * @dev Returns the current admin.
           *
           * TIP: To get this value clients can read directly from the storage slot shown below (specified by EIP1967) using the
           * https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call.
           * `0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103`
           */
          function _dispatchAdmin() private returns (bytes memory) {
              _requireZeroValue();
              address admin = _getAdmin();
              return abi.encode(admin);
          }
          /**
           * @dev Returns the current implementation.
           *
           * TIP: To get this value clients can read directly from the storage slot shown below (specified by EIP1967) using the
           * https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call.
           * `0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc`
           */
          function _dispatchImplementation() private returns (bytes memory) {
              _requireZeroValue();
              address implementation = _implementation();
              return abi.encode(implementation);
          }
          /**
           * @dev Changes the admin of the proxy.
           *
           * Emits an {AdminChanged} event.
           */
          function _dispatchChangeAdmin() private returns (bytes memory) {
              _requireZeroValue();
              address newAdmin = abi.decode(msg.data[4:], (address));
              _changeAdmin(newAdmin);
              return "";
          }
          /**
           * @dev Upgrade the implementation of the proxy.
           */
          function _dispatchUpgradeTo() private returns (bytes memory) {
              _requireZeroValue();
              address newImplementation = abi.decode(msg.data[4:], (address));
              _upgradeToAndCall(newImplementation, bytes(""), false);
              return "";
          }
          /**
           * @dev Upgrade the implementation of the proxy, and then call a function from the new implementation as specified
           * by `data`, which should be an encoded function call. This is useful to initialize new storage variables in the
           * proxied contract.
           */
          function _dispatchUpgradeToAndCall() private returns (bytes memory) {
              (address newImplementation, bytes memory data) = abi.decode(msg.data[4:], (address, bytes));
              _upgradeToAndCall(newImplementation, data, true);
              return "";
          }
          /**
           * @dev Returns the current admin.
           */
          function _admin() internal view virtual returns (address) {
              return _getAdmin();
          }
          /**
           * @dev To keep this contract fully transparent, all `ifAdmin` functions must be payable. This helper is here to
           * emulate some proxy functions being non-payable while still allowing value to pass through.
           */
          function _requireZeroValue() private {
              require(msg.value == 0);
          }
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts (last updated v4.8.0) (utils/Address.sol)
      pragma solidity ^0.8.1;
      /**
       * @dev Collection of functions related to the address type
       */
      library Address {
          /**
           * @dev Returns true if `account` is a contract.
           *
           * [IMPORTANT]
           * ====
           * It is unsafe to assume that an address for which this function returns
           * false is an externally-owned account (EOA) and not a contract.
           *
           * Among others, `isContract` will return false for the following
           * types of addresses:
           *
           *  - an externally-owned account
           *  - a contract in construction
           *  - an address where a contract will be created
           *  - an address where a contract lived, but was destroyed
           * ====
           *
           * [IMPORTANT]
           * ====
           * You shouldn't rely on `isContract` to protect against flash loan attacks!
           *
           * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
           * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
           * constructor.
           * ====
           */
          function isContract(address account) internal view returns (bool) {
              // This method relies on extcodesize/address.code.length, which returns 0
              // for contracts in construction, since the code is only stored at the end
              // of the constructor execution.
              return account.code.length > 0;
          }
          /**
           * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
           * `recipient`, forwarding all available gas and reverting on errors.
           *
           * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
           * of certain opcodes, possibly making contracts go over the 2300 gas limit
           * imposed by `transfer`, making them unable to receive funds via
           * `transfer`. {sendValue} removes this limitation.
           *
           * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
           *
           * IMPORTANT: because control is transferred to `recipient`, care must be
           * taken to not create reentrancy vulnerabilities. Consider using
           * {ReentrancyGuard} or the
           * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
           */
          function sendValue(address payable recipient, uint256 amount) internal {
              require(address(this).balance >= amount, "Address: insufficient balance");
              (bool success, ) = recipient.call{value: amount}("");
              require(success, "Address: unable to send value, recipient may have reverted");
          }
          /**
           * @dev Performs a Solidity function call using a low level `call`. A
           * plain `call` is an unsafe replacement for a function call: use this
           * function instead.
           *
           * If `target` reverts with a revert reason, it is bubbled up by this
           * function (like regular Solidity function calls).
           *
           * Returns the raw returned data. To convert to the expected return value,
           * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
           *
           * Requirements:
           *
           * - `target` must be a contract.
           * - calling `target` with `data` must not revert.
           *
           * _Available since v3.1._
           */
          function functionCall(address target, bytes memory data) internal returns (bytes memory) {
              return functionCallWithValue(target, data, 0, "Address: low-level call failed");
          }
          /**
           * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
           * `errorMessage` as a fallback revert reason when `target` reverts.
           *
           * _Available since v3.1._
           */
          function functionCall(
              address target,
              bytes memory data,
              string memory errorMessage
          ) internal returns (bytes memory) {
              return functionCallWithValue(target, data, 0, errorMessage);
          }
          /**
           * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
           * but also transferring `value` wei to `target`.
           *
           * Requirements:
           *
           * - the calling contract must have an ETH balance of at least `value`.
           * - the called Solidity function must be `payable`.
           *
           * _Available since v3.1._
           */
          function functionCallWithValue(
              address target,
              bytes memory data,
              uint256 value
          ) internal returns (bytes memory) {
              return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
          }
          /**
           * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
           * with `errorMessage` as a fallback revert reason when `target` reverts.
           *
           * _Available since v3.1._
           */
          function functionCallWithValue(
              address target,
              bytes memory data,
              uint256 value,
              string memory errorMessage
          ) internal returns (bytes memory) {
              require(address(this).balance >= value, "Address: insufficient balance for call");
              (bool success, bytes memory returndata) = target.call{value: value}(data);
              return verifyCallResultFromTarget(target, success, returndata, errorMessage);
          }
          /**
           * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
           * but performing a static call.
           *
           * _Available since v3.3._
           */
          function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
              return functionStaticCall(target, data, "Address: low-level static call failed");
          }
          /**
           * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
           * but performing a static call.
           *
           * _Available since v3.3._
           */
          function functionStaticCall(
              address target,
              bytes memory data,
              string memory errorMessage
          ) internal view returns (bytes memory) {
              (bool success, bytes memory returndata) = target.staticcall(data);
              return verifyCallResultFromTarget(target, success, returndata, errorMessage);
          }
          /**
           * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
           * but performing a delegate call.
           *
           * _Available since v3.4._
           */
          function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
              return functionDelegateCall(target, data, "Address: low-level delegate call failed");
          }
          /**
           * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
           * but performing a delegate call.
           *
           * _Available since v3.4._
           */
          function functionDelegateCall(
              address target,
              bytes memory data,
              string memory errorMessage
          ) internal returns (bytes memory) {
              (bool success, bytes memory returndata) = target.delegatecall(data);
              return verifyCallResultFromTarget(target, success, returndata, errorMessage);
          }
          /**
           * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
           * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
           *
           * _Available since v4.8._
           */
          function verifyCallResultFromTarget(
              address target,
              bool success,
              bytes memory returndata,
              string memory errorMessage
          ) internal view returns (bytes memory) {
              if (success) {
                  if (returndata.length == 0) {
                      // only check isContract if the call was successful and the return data is empty
                      // otherwise we already know that it was a contract
                      require(isContract(target), "Address: call to non-contract");
                  }
                  return returndata;
              } else {
                  _revert(returndata, errorMessage);
              }
          }
          /**
           * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
           * revert reason or using the provided one.
           *
           * _Available since v4.3._
           */
          function verifyCallResult(
              bool success,
              bytes memory returndata,
              string memory errorMessage
          ) internal pure returns (bytes memory) {
              if (success) {
                  return returndata;
              } else {
                  _revert(returndata, errorMessage);
              }
          }
          function _revert(bytes memory returndata, string memory errorMessage) private pure {
              // Look for revert reason and bubble it up if present
              if (returndata.length > 0) {
                  // The easiest way to bubble the revert reason is using memory via assembly
                  /// @solidity memory-safe-assembly
                  assembly {
                      let returndata_size := mload(returndata)
                      revert(add(32, returndata), returndata_size)
                  }
              } else {
                  revert(errorMessage);
              }
          }
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
      pragma solidity ^0.8.0;
      /**
       * @dev Provides information about the current execution context, including the
       * sender of the transaction and its data. While these are generally available
       * via msg.sender and msg.data, they should not be accessed in such a direct
       * manner, since when dealing with meta-transactions the account sending and
       * paying for execution may not be the actual sender (as far as an application
       * is concerned).
       *
       * This contract is only required for intermediate, library-like contracts.
       */
      abstract contract Context {
          function _msgSender() internal view virtual returns (address) {
              return msg.sender;
          }
          function _msgData() internal view virtual returns (bytes calldata) {
              return msg.data;
          }
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts (last updated v4.7.0) (utils/StorageSlot.sol)
      pragma solidity ^0.8.0;
      /**
       * @dev Library for reading and writing primitive types to specific storage slots.
       *
       * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.
       * This library helps with reading and writing to such slots without the need for inline assembly.
       *
       * The functions in this library return Slot structs that contain a `value` member that can be used to read or write.
       *
       * Example usage to set ERC1967 implementation slot:
       * ```
       * contract ERC1967 {
       *     bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
       *
       *     function _getImplementation() internal view returns (address) {
       *         return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
       *     }
       *
       *     function _setImplementation(address newImplementation) internal {
       *         require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
       *         StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
       *     }
       * }
       * ```
       *
       * _Available since v4.1 for `address`, `bool`, `bytes32`, and `uint256`._
       */
      library StorageSlot {
          struct AddressSlot {
              address value;
          }
          struct BooleanSlot {
              bool value;
          }
          struct Bytes32Slot {
              bytes32 value;
          }
          struct Uint256Slot {
              uint256 value;
          }
          /**
           * @dev Returns an `AddressSlot` with member `value` located at `slot`.
           */
          function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {
              /// @solidity memory-safe-assembly
              assembly {
                  r.slot := slot
              }
          }
          /**
           * @dev Returns an `BooleanSlot` with member `value` located at `slot`.
           */
          function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {
              /// @solidity memory-safe-assembly
              assembly {
                  r.slot := slot
              }
          }
          /**
           * @dev Returns an `Bytes32Slot` with member `value` located at `slot`.
           */
          function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {
              /// @solidity memory-safe-assembly
              assembly {
                  r.slot := slot
              }
          }
          /**
           * @dev Returns an `Uint256Slot` with member `value` located at `slot`.
           */
          function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {
              /// @solidity memory-safe-assembly
              assembly {
                  r.slot := slot
              }
          }
      }
      

      File 2 of 2: PriceFeedsAdapterStaderEthxWithRoundsV2
      // SPDX-License-Identifier: BUSL-1.1
      pragma solidity ^0.8.4;
      library OldGelatoAddress {
        address constant public ADDR = 0xc4D1AE5E796E6d7561cdc8335F85e6B57a36e097;
      }
      library GelatoAddress {
        address constant public ADDR = 0xCD6BfDA4D95d5C0f3f2882dC221D792392c99714;
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts (last updated v4.9.0) (proxy/utils/Initializable.sol)
      pragma solidity ^0.8.2;
      import "../../utils/AddressUpgradeable.sol";
      /**
       * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
       * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
       * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
       * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
       *
       * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
       * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
       * case an upgrade adds a module that needs to be initialized.
       *
       * For example:
       *
       * [.hljs-theme-light.nopadding]
       * ```solidity
       * contract MyToken is ERC20Upgradeable {
       *     function initialize() initializer public {
       *         __ERC20_init("MyToken", "MTK");
       *     }
       * }
       *
       * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
       *     function initializeV2() reinitializer(2) public {
       *         __ERC20Permit_init("MyToken");
       *     }
       * }
       * ```
       *
       * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
       * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
       *
       * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
       * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
       *
       * [CAUTION]
       * ====
       * Avoid leaving a contract uninitialized.
       *
       * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
       * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
       * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
       *
       * [.hljs-theme-light.nopadding]
       * ```
       * /// @custom:oz-upgrades-unsafe-allow constructor
       * constructor() {
       *     _disableInitializers();
       * }
       * ```
       * ====
       */
      abstract contract Initializable {
          /**
           * @dev Indicates that the contract has been initialized.
           * @custom:oz-retyped-from bool
           */
          uint8 private _initialized;
          /**
           * @dev Indicates that the contract is in the process of being initialized.
           */
          bool private _initializing;
          /**
           * @dev Triggered when the contract has been initialized or reinitialized.
           */
          event Initialized(uint8 version);
          /**
           * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
           * `onlyInitializing` functions can be used to initialize parent contracts.
           *
           * Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a
           * constructor.
           *
           * Emits an {Initialized} event.
           */
          modifier initializer() {
              bool isTopLevelCall = !_initializing;
              require(
                  (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),
                  "Initializable: contract is already initialized"
              );
              _initialized = 1;
              if (isTopLevelCall) {
                  _initializing = true;
              }
              _;
              if (isTopLevelCall) {
                  _initializing = false;
                  emit Initialized(1);
              }
          }
          /**
           * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
           * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
           * used to initialize parent contracts.
           *
           * A reinitializer may be used after the original initialization step. This is essential to configure modules that
           * are added through upgrades and that require initialization.
           *
           * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
           * cannot be nested. If one is invoked in the context of another, execution will revert.
           *
           * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
           * a contract, executing them in the right order is up to the developer or operator.
           *
           * WARNING: setting the version to 255 will prevent any future reinitialization.
           *
           * Emits an {Initialized} event.
           */
          modifier reinitializer(uint8 version) {
              require(!_initializing && _initialized < version, "Initializable: contract is already initialized");
              _initialized = version;
              _initializing = true;
              _;
              _initializing = false;
              emit Initialized(version);
          }
          /**
           * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
           * {initializer} and {reinitializer} modifiers, directly or indirectly.
           */
          modifier onlyInitializing() {
              require(_initializing, "Initializable: contract is not initializing");
              _;
          }
          /**
           * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
           * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
           * to any version. It is recommended to use this to lock implementation contracts that are designed to be called
           * through proxies.
           *
           * Emits an {Initialized} event the first time it is successfully executed.
           */
          function _disableInitializers() internal virtual {
              require(!_initializing, "Initializable: contract is initializing");
              if (_initialized != type(uint8).max) {
                  _initialized = type(uint8).max;
                  emit Initialized(type(uint8).max);
              }
          }
          /**
           * @dev Returns the highest version that has been initialized. See {reinitializer}.
           */
          function _getInitializedVersion() internal view returns (uint8) {
              return _initialized;
          }
          /**
           * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.
           */
          function _isInitializing() internal view returns (bool) {
              return _initializing;
          }
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)
      pragma solidity ^0.8.1;
      /**
       * @dev Collection of functions related to the address type
       */
      library AddressUpgradeable {
          /**
           * @dev Returns true if `account` is a contract.
           *
           * [IMPORTANT]
           * ====
           * It is unsafe to assume that an address for which this function returns
           * false is an externally-owned account (EOA) and not a contract.
           *
           * Among others, `isContract` will return false for the following
           * types of addresses:
           *
           *  - an externally-owned account
           *  - a contract in construction
           *  - an address where a contract will be created
           *  - an address where a contract lived, but was destroyed
           *
           * Furthermore, `isContract` will also return true if the target contract within
           * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
           * which only has an effect at the end of a transaction.
           * ====
           *
           * [IMPORTANT]
           * ====
           * You shouldn't rely on `isContract` to protect against flash loan attacks!
           *
           * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
           * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
           * constructor.
           * ====
           */
          function isContract(address account) internal view returns (bool) {
              // This method relies on extcodesize/address.code.length, which returns 0
              // for contracts in construction, since the code is only stored at the end
              // of the constructor execution.
              return account.code.length > 0;
          }
          /**
           * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
           * `recipient`, forwarding all available gas and reverting on errors.
           *
           * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
           * of certain opcodes, possibly making contracts go over the 2300 gas limit
           * imposed by `transfer`, making them unable to receive funds via
           * `transfer`. {sendValue} removes this limitation.
           *
           * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
           *
           * IMPORTANT: because control is transferred to `recipient`, care must be
           * taken to not create reentrancy vulnerabilities. Consider using
           * {ReentrancyGuard} or the
           * https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
           */
          function sendValue(address payable recipient, uint256 amount) internal {
              require(address(this).balance >= amount, "Address: insufficient balance");
              (bool success, ) = recipient.call{value: amount}("");
              require(success, "Address: unable to send value, recipient may have reverted");
          }
          /**
           * @dev Performs a Solidity function call using a low level `call`. A
           * plain `call` is an unsafe replacement for a function call: use this
           * function instead.
           *
           * If `target` reverts with a revert reason, it is bubbled up by this
           * function (like regular Solidity function calls).
           *
           * Returns the raw returned data. To convert to the expected return value,
           * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
           *
           * Requirements:
           *
           * - `target` must be a contract.
           * - calling `target` with `data` must not revert.
           *
           * _Available since v3.1._
           */
          function functionCall(address target, bytes memory data) internal returns (bytes memory) {
              return functionCallWithValue(target, data, 0, "Address: low-level call failed");
          }
          /**
           * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
           * `errorMessage` as a fallback revert reason when `target` reverts.
           *
           * _Available since v3.1._
           */
          function functionCall(
              address target,
              bytes memory data,
              string memory errorMessage
          ) internal returns (bytes memory) {
              return functionCallWithValue(target, data, 0, errorMessage);
          }
          /**
           * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
           * but also transferring `value` wei to `target`.
           *
           * Requirements:
           *
           * - the calling contract must have an ETH balance of at least `value`.
           * - the called Solidity function must be `payable`.
           *
           * _Available since v3.1._
           */
          function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
              return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
          }
          /**
           * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
           * with `errorMessage` as a fallback revert reason when `target` reverts.
           *
           * _Available since v3.1._
           */
          function functionCallWithValue(
              address target,
              bytes memory data,
              uint256 value,
              string memory errorMessage
          ) internal returns (bytes memory) {
              require(address(this).balance >= value, "Address: insufficient balance for call");
              (bool success, bytes memory returndata) = target.call{value: value}(data);
              return verifyCallResultFromTarget(target, success, returndata, errorMessage);
          }
          /**
           * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
           * but performing a static call.
           *
           * _Available since v3.3._
           */
          function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
              return functionStaticCall(target, data, "Address: low-level static call failed");
          }
          /**
           * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
           * but performing a static call.
           *
           * _Available since v3.3._
           */
          function functionStaticCall(
              address target,
              bytes memory data,
              string memory errorMessage
          ) internal view returns (bytes memory) {
              (bool success, bytes memory returndata) = target.staticcall(data);
              return verifyCallResultFromTarget(target, success, returndata, errorMessage);
          }
          /**
           * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
           * but performing a delegate call.
           *
           * _Available since v3.4._
           */
          function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
              return functionDelegateCall(target, data, "Address: low-level delegate call failed");
          }
          /**
           * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
           * but performing a delegate call.
           *
           * _Available since v3.4._
           */
          function functionDelegateCall(
              address target,
              bytes memory data,
              string memory errorMessage
          ) internal returns (bytes memory) {
              (bool success, bytes memory returndata) = target.delegatecall(data);
              return verifyCallResultFromTarget(target, success, returndata, errorMessage);
          }
          /**
           * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
           * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
           *
           * _Available since v4.8._
           */
          function verifyCallResultFromTarget(
              address target,
              bool success,
              bytes memory returndata,
              string memory errorMessage
          ) internal view returns (bytes memory) {
              if (success) {
                  if (returndata.length == 0) {
                      // only check isContract if the call was successful and the return data is empty
                      // otherwise we already know that it was a contract
                      require(isContract(target), "Address: call to non-contract");
                  }
                  return returndata;
              } else {
                  _revert(returndata, errorMessage);
              }
          }
          /**
           * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
           * revert reason or using the provided one.
           *
           * _Available since v4.3._
           */
          function verifyCallResult(
              bool success,
              bytes memory returndata,
              string memory errorMessage
          ) internal pure returns (bytes memory) {
              if (success) {
                  return returndata;
              } else {
                  _revert(returndata, errorMessage);
              }
          }
          function _revert(bytes memory returndata, string memory errorMessage) private pure {
              // Look for revert reason and bubble it up if present
              if (returndata.length > 0) {
                  // The easiest way to bubble the revert reason is using memory via assembly
                  /// @solidity memory-safe-assembly
                  assembly {
                      let returndata_size := mload(returndata)
                      revert(add(32, returndata), returndata_size)
                  }
              } else {
                  revert(errorMessage);
              }
          }
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts (last updated v4.6.0) (utils/math/SafeMath.sol)
      pragma solidity ^0.8.0;
      // CAUTION
      // This version of SafeMath should only be used with Solidity 0.8 or later,
      // because it relies on the compiler's built in overflow checks.
      /**
       * @dev Wrappers over Solidity's arithmetic operations.
       *
       * NOTE: `SafeMath` is generally not needed starting with Solidity 0.8, since the compiler
       * now has built in overflow checking.
       */
      library SafeMath {
          /**
           * @dev Returns the addition of two unsigned integers, with an overflow flag.
           *
           * _Available since v3.4._
           */
          function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
              unchecked {
                  uint256 c = a + b;
                  if (c < a) return (false, 0);
                  return (true, c);
              }
          }
          /**
           * @dev Returns the subtraction of two unsigned integers, with an overflow flag.
           *
           * _Available since v3.4._
           */
          function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
              unchecked {
                  if (b > a) return (false, 0);
                  return (true, a - b);
              }
          }
          /**
           * @dev Returns the multiplication of two unsigned integers, with an overflow flag.
           *
           * _Available since v3.4._
           */
          function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
              unchecked {
                  // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
                  // benefit is lost if 'b' is also tested.
                  // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
                  if (a == 0) return (true, 0);
                  uint256 c = a * b;
                  if (c / a != b) return (false, 0);
                  return (true, c);
              }
          }
          /**
           * @dev Returns the division of two unsigned integers, with a division by zero flag.
           *
           * _Available since v3.4._
           */
          function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
              unchecked {
                  if (b == 0) return (false, 0);
                  return (true, a / b);
              }
          }
          /**
           * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
           *
           * _Available since v3.4._
           */
          function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
              unchecked {
                  if (b == 0) return (false, 0);
                  return (true, a % b);
              }
          }
          /**
           * @dev Returns the addition of two unsigned integers, reverting on
           * overflow.
           *
           * Counterpart to Solidity's `+` operator.
           *
           * Requirements:
           *
           * - Addition cannot overflow.
           */
          function add(uint256 a, uint256 b) internal pure returns (uint256) {
              return a + b;
          }
          /**
           * @dev Returns the subtraction of two unsigned integers, reverting on
           * overflow (when the result is negative).
           *
           * Counterpart to Solidity's `-` operator.
           *
           * Requirements:
           *
           * - Subtraction cannot overflow.
           */
          function sub(uint256 a, uint256 b) internal pure returns (uint256) {
              return a - b;
          }
          /**
           * @dev Returns the multiplication of two unsigned integers, reverting on
           * overflow.
           *
           * Counterpart to Solidity's `*` operator.
           *
           * Requirements:
           *
           * - Multiplication cannot overflow.
           */
          function mul(uint256 a, uint256 b) internal pure returns (uint256) {
              return a * b;
          }
          /**
           * @dev Returns the integer division of two unsigned integers, reverting on
           * division by zero. The result is rounded towards zero.
           *
           * Counterpart to Solidity's `/` operator.
           *
           * Requirements:
           *
           * - The divisor cannot be zero.
           */
          function div(uint256 a, uint256 b) internal pure returns (uint256) {
              return a / b;
          }
          /**
           * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
           * reverting when dividing by zero.
           *
           * Counterpart to Solidity's `%` operator. This function uses a `revert`
           * opcode (which leaves remaining gas untouched) while Solidity uses an
           * invalid opcode to revert (consuming all remaining gas).
           *
           * Requirements:
           *
           * - The divisor cannot be zero.
           */
          function mod(uint256 a, uint256 b) internal pure returns (uint256) {
              return a % b;
          }
          /**
           * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
           * overflow (when the result is negative).
           *
           * CAUTION: This function is deprecated because it requires allocating memory for the error
           * message unnecessarily. For custom revert reasons use {trySub}.
           *
           * Counterpart to Solidity's `-` operator.
           *
           * Requirements:
           *
           * - Subtraction cannot overflow.
           */
          function sub(
              uint256 a,
              uint256 b,
              string memory errorMessage
          ) internal pure returns (uint256) {
              unchecked {
                  require(b <= a, errorMessage);
                  return a - b;
              }
          }
          /**
           * @dev Returns the integer division of two unsigned integers, reverting with custom message on
           * division by zero. The result is rounded towards zero.
           *
           * Counterpart to Solidity's `/` operator. Note: this function uses a
           * `revert` opcode (which leaves remaining gas untouched) while Solidity
           * uses an invalid opcode to revert (consuming all remaining gas).
           *
           * Requirements:
           *
           * - The divisor cannot be zero.
           */
          function div(
              uint256 a,
              uint256 b,
              string memory errorMessage
          ) internal pure returns (uint256) {
              unchecked {
                  require(b > 0, errorMessage);
                  return a / b;
              }
          }
          /**
           * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
           * reverting with custom message when dividing by zero.
           *
           * CAUTION: This function is deprecated because it requires allocating memory for the error
           * message unnecessarily. For custom revert reasons use {tryMod}.
           *
           * Counterpart to Solidity's `%` operator. This function uses a `revert`
           * opcode (which leaves remaining gas untouched) while Solidity uses an
           * invalid opcode to revert (consuming all remaining gas).
           *
           * Requirements:
           *
           * - The divisor cannot be zero.
           */
          function mod(
              uint256 a,
              uint256 b,
              string memory errorMessage
          ) internal pure returns (uint256) {
              unchecked {
                  require(b > 0, errorMessage);
                  return a % b;
              }
          }
      }
      // SPDX-License-Identifier: BUSL-1.1
      pragma solidity ^0.8.4;
      import "../../../../@openzeppelin/contracts/utils/math/SafeMath.sol";
      import "./RedstoneConstants.sol";
      /**
       * @title The base contract with the main logic of data extraction from calldata
       * @author The Redstone Oracles team
       * @dev This contract was created to reuse the same logic in the RedstoneConsumerBase
       * and the ProxyConnector contracts
       */
      contract CalldataExtractor is RedstoneConstants {
        using SafeMath for uint256;
        function _extractByteSizeOfUnsignedMetadata() internal pure returns (uint256) {
          // Checking if the calldata ends with the RedStone marker
          bool hasValidRedstoneMarker;
          assembly {
            let calldataLast32Bytes := calldataload(sub(calldatasize(), STANDARD_SLOT_BS))
            hasValidRedstoneMarker := eq(
              REDSTONE_MARKER_MASK,
              and(calldataLast32Bytes, REDSTONE_MARKER_MASK)
            )
          }
          if (!hasValidRedstoneMarker) {
            revert CalldataMustHaveValidPayload();
          }
          // Using uint24, because unsigned metadata byte size number has 3 bytes
          uint24 unsignedMetadataByteSize;
          if (REDSTONE_MARKER_BS_PLUS_STANDARD_SLOT_BS > msg.data.length) {
            revert CalldataOverOrUnderFlow();
          }
          assembly {
            unsignedMetadataByteSize := calldataload(
              sub(calldatasize(), REDSTONE_MARKER_BS_PLUS_STANDARD_SLOT_BS)
            )
          }
          uint256 calldataNegativeOffset = unsignedMetadataByteSize
            + UNSIGNED_METADATA_BYTE_SIZE_BS
            + REDSTONE_MARKER_BS;
          if (calldataNegativeOffset + DATA_PACKAGES_COUNT_BS > msg.data.length) {
            revert IncorrectUnsignedMetadataSize();
          }
          return calldataNegativeOffset;
        }
        // We return uint16, because unsigned metadata byte size number has 2 bytes
        function _extractDataPackagesCountFromCalldata(uint256 calldataNegativeOffset)
          internal
          pure
          returns (uint16 dataPackagesCount)
        {
          uint256 calldataNegativeOffsetWithStandardSlot = calldataNegativeOffset + STANDARD_SLOT_BS;
          if (calldataNegativeOffsetWithStandardSlot > msg.data.length) {
            revert CalldataOverOrUnderFlow();
          }
          assembly {
            dataPackagesCount := calldataload(
              sub(calldatasize(), calldataNegativeOffsetWithStandardSlot)
            )
          }
          return dataPackagesCount;
        }
        function _extractDataPointValueAndDataFeedId(
          uint256 calldataNegativeOffsetForDataPackage,
          uint256 defaultDataPointValueByteSize,
          uint256 dataPointIndex
        ) internal pure virtual returns (bytes32 dataPointDataFeedId, uint256 dataPointValue) {
          uint256 negativeOffsetToDataPoints = calldataNegativeOffsetForDataPackage + DATA_PACKAGE_WITHOUT_DATA_POINTS_BS;
          uint256 dataPointNegativeOffset = negativeOffsetToDataPoints.add(
            (1 + dataPointIndex).mul((defaultDataPointValueByteSize + DATA_POINT_SYMBOL_BS))
          );
          uint256 dataPointCalldataOffset = msg.data.length.sub(dataPointNegativeOffset);
          assembly {
            dataPointDataFeedId := calldataload(dataPointCalldataOffset)
            dataPointValue := calldataload(add(dataPointCalldataOffset, DATA_POINT_SYMBOL_BS))
          }
        }
        function _extractDataPointsDetailsForDataPackage(uint256 calldataNegativeOffsetForDataPackage)
          internal
          pure
          returns (uint256 dataPointsCount, uint256 eachDataPointValueByteSize)
        {
          // Using uint24, because data points count byte size number has 3 bytes
          uint24 dataPointsCount_;
          // Using uint32, because data point value byte size has 4 bytes
          uint32 eachDataPointValueByteSize_;
          // Extract data points count
          uint256 negativeCalldataOffset = calldataNegativeOffsetForDataPackage + SIG_BS;
          uint256 calldataOffset = msg.data.length.sub(negativeCalldataOffset + STANDARD_SLOT_BS);
          assembly {
            dataPointsCount_ := calldataload(calldataOffset)
          }
          // Extract each data point value size
          calldataOffset = calldataOffset.sub(DATA_POINTS_COUNT_BS);
          assembly {
            eachDataPointValueByteSize_ := calldataload(calldataOffset)
          }
          // Prepare returned values
          dataPointsCount = dataPointsCount_;
          eachDataPointValueByteSize = eachDataPointValueByteSize_;
        }
      }
      // SPDX-License-Identifier: BUSL-1.1
      pragma solidity ^0.8.4;
      /**
       * @title The base contract with helpful constants
       * @author The Redstone Oracles team
       * @dev It mainly contains redstone-related values, which improve readability
       * of other contracts (e.g. CalldataExtractor and RedstoneConsumerBase)
       */
      contract RedstoneConstants {
        // === Abbreviations ===
        // BS - Bytes size
        // PTR - Pointer (memory location)
        // SIG - Signature
        // Solidity and YUL constants
        uint256 internal constant STANDARD_SLOT_BS = 32;
        uint256 internal constant FREE_MEMORY_PTR = 0x40;
        uint256 internal constant BYTES_ARR_LEN_VAR_BS = 32;
        uint256 internal constant FUNCTION_SIGNATURE_BS = 4;
        uint256 internal constant REVERT_MSG_OFFSET = 68; // Revert message structure described here: https://ethereum.stackexchange.com/a/66173/106364
        uint256 internal constant STRING_ERR_MESSAGE_MASK = 0x08c379a000000000000000000000000000000000000000000000000000000000;
        // RedStone protocol consts
        uint256 internal constant SIG_BS = 65;
        uint256 internal constant TIMESTAMP_BS = 6;
        uint256 internal constant DATA_PACKAGES_COUNT_BS = 2;
        uint256 internal constant DATA_POINTS_COUNT_BS = 3;
        uint256 internal constant DATA_POINT_VALUE_BYTE_SIZE_BS = 4;
        uint256 internal constant DATA_POINT_SYMBOL_BS = 32;
        uint256 internal constant DEFAULT_DATA_POINT_VALUE_BS = 32;
        uint256 internal constant UNSIGNED_METADATA_BYTE_SIZE_BS = 3;
        uint256 internal constant REDSTONE_MARKER_BS = 9; // byte size of 0x000002ed57011e0000
        uint256 internal constant REDSTONE_MARKER_MASK = 0x0000000000000000000000000000000000000000000000000002ed57011e0000;
        // Derived values (based on consts)
        uint256 internal constant TIMESTAMP_NEGATIVE_OFFSET_IN_DATA_PACKAGE_WITH_STANDARD_SLOT_BS = 104; // SIG_BS + DATA_POINTS_COUNT_BS + DATA_POINT_VALUE_BYTE_SIZE_BS + STANDARD_SLOT_BS
        uint256 internal constant DATA_PACKAGE_WITHOUT_DATA_POINTS_BS = 78; // DATA_POINT_VALUE_BYTE_SIZE_BS + TIMESTAMP_BS + DATA_POINTS_COUNT_BS + SIG_BS
        uint256 internal constant DATA_PACKAGE_WITHOUT_DATA_POINTS_AND_SIG_BS = 13; // DATA_POINT_VALUE_BYTE_SIZE_BS + TIMESTAMP_BS + DATA_POINTS_COUNT_BS
        uint256 internal constant REDSTONE_MARKER_BS_PLUS_STANDARD_SLOT_BS = 41; // REDSTONE_MARKER_BS + STANDARD_SLOT_BS
        // Error messages
        error CalldataOverOrUnderFlow();
        error IncorrectUnsignedMetadataSize();
        error InsufficientNumberOfUniqueSigners(uint256 receivedSignersCount, uint256 requiredSignersCount);
        error EachSignerMustProvideTheSameValue();
        error EmptyCalldataPointersArr();
        error InvalidCalldataPointer();
        error CalldataMustHaveValidPayload();
        error SignerNotAuthorised(address receivedSigner);
      }
      // SPDX-License-Identifier: BUSL-1.1
      pragma solidity ^0.8.4;
      import "../../../../@openzeppelin/contracts/utils/math/SafeMath.sol";
      import "./RedstoneConstants.sol";
      import "./RedstoneDefaultsLib.sol";
      import "./CalldataExtractor.sol";
      import "../libs/BitmapLib.sol";
      import "../libs/SignatureLib.sol";
      /**
       * @title The base contract with the main Redstone logic
       * @author The Redstone Oracles team
       * @dev Do not use this contract directly in consumer contracts, take a
       * look at `RedstoneConsumerNumericBase` and `RedstoneConsumerBytesBase` instead
       */
      abstract contract RedstoneConsumerBase is CalldataExtractor {
        using SafeMath for uint256;
        /* ========== VIRTUAL FUNCTIONS (MAY BE OVERRIDDEN IN CHILD CONTRACTS) ========== */
        /**
         * @dev This function must be implemented by the child consumer contract.
         * It should return a unique index for a given signer address if the signer
         * is authorised, otherwise it should revert
         * @param receivedSigner The address of a signer, recovered from ECDSA signature
         * @return Unique index for a signer in the range [0..255]
         */
        function getAuthorisedSignerIndex(address receivedSigner) public view virtual returns (uint8);
        /**
         * @dev This function may be overridden by the child consumer contract.
         * It should validate the timestamp against the current time (block.timestamp)
         * It should revert with a helpful message if the timestamp is not valid
         * @param receivedTimestampMilliseconds Timestamp extracted from calldata
         */
        function validateTimestamp(uint256 receivedTimestampMilliseconds) public view virtual {
          RedstoneDefaultsLib.validateTimestamp(receivedTimestampMilliseconds);
        }
        /**
         * @dev This function should be overridden by the child consumer contract.
         * @return The minimum required value of unique authorised signers
         */
        function getUniqueSignersThreshold() public view virtual returns (uint8) {
          return 1;
        }
        /**
         * @dev This function may be overridden by the child consumer contract.
         * It should aggregate values from different signers to a single uint value.
         * By default, it calculates the median value
         * @param values An array of uint256 values from different signers
         * @return Result of the aggregation in the form of a single number
         */
        function aggregateValues(uint256[] memory values) public view virtual returns (uint256) {
          return RedstoneDefaultsLib.aggregateValues(values);
        }
        /* ========== FUNCTIONS WITH IMPLEMENTATION (CAN NOT BE OVERRIDDEN) ========== */
        /**
         * @dev This is an internal helpful function for secure extraction oracle values
         * from the tx calldata. Security is achieved by signatures verification, timestamp
         * validation, and aggregating values from different authorised signers into a
         * single numeric value. If any of the required conditions (e.g. too old timestamp or
         * insufficient number of authorised signers) do not match, the function will revert.
         *
         * Note! You should not call this function in a consumer contract. You can use
         * `getOracleNumericValuesFromTxMsg` or `getOracleNumericValueFromTxMsg` instead.
         *
         * @param dataFeedIds An array of unique data feed identifiers
         * @return An array of the extracted and verified oracle values in the same order
         * as they are requested in dataFeedIds array
         */
        function _securelyExtractOracleValuesFromTxMsg(bytes32[] memory dataFeedIds)
          internal
          view
          returns (uint256[] memory)
        {
          // Initializing helpful variables and allocating memory
          uint256[] memory uniqueSignerCountForDataFeedIds = new uint256[](dataFeedIds.length);
          uint256[] memory signersBitmapForDataFeedIds = new uint256[](dataFeedIds.length);
          uint256[][] memory valuesForDataFeeds = new uint256[][](dataFeedIds.length);
          for (uint256 i = 0; i < dataFeedIds.length; i++) {
            // The line below is commented because newly allocated arrays are filled with zeros
            // But we left it for better readability
            // signersBitmapForDataFeedIds[i] = 0; // <- setting to an empty bitmap
            valuesForDataFeeds[i] = new uint256[](getUniqueSignersThreshold());
          }
          // Extracting the number of data packages from calldata
          uint256 calldataNegativeOffset = _extractByteSizeOfUnsignedMetadata();
          uint256 dataPackagesCount = _extractDataPackagesCountFromCalldata(calldataNegativeOffset);
          calldataNegativeOffset += DATA_PACKAGES_COUNT_BS;
          // Saving current free memory pointer
          uint256 freeMemPtr;
          assembly {
            freeMemPtr := mload(FREE_MEMORY_PTR)
          }
          // Data packages extraction in a loop
          for (uint256 dataPackageIndex = 0; dataPackageIndex < dataPackagesCount; dataPackageIndex++) {
            // Extract data package details and update calldata offset
            uint256 dataPackageByteSize = _extractDataPackage(
              dataFeedIds,
              uniqueSignerCountForDataFeedIds,
              signersBitmapForDataFeedIds,
              valuesForDataFeeds,
              calldataNegativeOffset
            );
            calldataNegativeOffset += dataPackageByteSize;
            // Shifting memory pointer back to the "safe" value
            assembly {
              mstore(FREE_MEMORY_PTR, freeMemPtr)
            }
          }
          // Validating numbers of unique signers and calculating aggregated values for each dataFeedId
          return _getAggregatedValues(valuesForDataFeeds, uniqueSignerCountForDataFeedIds);
        }
        /**
         * @dev This is a private helpful function, which extracts data for a data package based
         * on the given negative calldata offset, verifies them, and in the case of successful
         * verification updates the corresponding data package values in memory
         *
         * @param dataFeedIds an array of unique data feed identifiers
         * @param uniqueSignerCountForDataFeedIds an array with the numbers of unique signers
         * for each data feed
         * @param signersBitmapForDataFeedIds an array of signer bitmaps for data feeds
         * @param valuesForDataFeeds 2-dimensional array, valuesForDataFeeds[i][j] contains
         * j-th value for the i-th data feed
         * @param calldataNegativeOffset negative calldata offset for the given data package
         *
         * @return An array of the aggregated values
         */
        function _extractDataPackage(
          bytes32[] memory dataFeedIds,
          uint256[] memory uniqueSignerCountForDataFeedIds,
          uint256[] memory signersBitmapForDataFeedIds,
          uint256[][] memory valuesForDataFeeds,
          uint256 calldataNegativeOffset
        ) private view returns (uint256) {
          uint256 signerIndex;
          (
            uint256 dataPointsCount,
            uint256 eachDataPointValueByteSize
          ) = _extractDataPointsDetailsForDataPackage(calldataNegativeOffset);
          // We use scopes to resolve problem with too deep stack
          {
            uint48 extractedTimestamp;
            address signerAddress;
            bytes32 signedHash;
            bytes memory signedMessage;
            uint256 signedMessageBytesCount;
            signedMessageBytesCount = dataPointsCount.mul(eachDataPointValueByteSize + DATA_POINT_SYMBOL_BS)
              + DATA_PACKAGE_WITHOUT_DATA_POINTS_AND_SIG_BS; //DATA_POINT_VALUE_BYTE_SIZE_BS + TIMESTAMP_BS + DATA_POINTS_COUNT_BS
            uint256 timestampCalldataOffset = msg.data.length.sub(
              calldataNegativeOffset + TIMESTAMP_NEGATIVE_OFFSET_IN_DATA_PACKAGE_WITH_STANDARD_SLOT_BS);
            uint256 signedMessageCalldataOffset = msg.data.length.sub(
              calldataNegativeOffset + SIG_BS + signedMessageBytesCount);
            assembly {
              // Extracting the signed message
              signedMessage := extractBytesFromCalldata(
                signedMessageCalldataOffset,
                signedMessageBytesCount
              )
              // Hashing the signed message
              signedHash := keccak256(add(signedMessage, BYTES_ARR_LEN_VAR_BS), signedMessageBytesCount)
              // Extracting timestamp
              extractedTimestamp := calldataload(timestampCalldataOffset)
              function initByteArray(bytesCount) -> ptr {
                ptr := mload(FREE_MEMORY_PTR)
                mstore(ptr, bytesCount)
                ptr := add(ptr, BYTES_ARR_LEN_VAR_BS)
                mstore(FREE_MEMORY_PTR, add(ptr, bytesCount))
              }
              function extractBytesFromCalldata(offset, bytesCount) -> extractedBytes {
                let extractedBytesStartPtr := initByteArray(bytesCount)
                calldatacopy(
                  extractedBytesStartPtr,
                  offset,
                  bytesCount
                )
                extractedBytes := sub(extractedBytesStartPtr, BYTES_ARR_LEN_VAR_BS)
              }
            }
            // Validating timestamp
            validateTimestamp(extractedTimestamp);
            // Verifying the off-chain signature against on-chain hashed data
            signerAddress = SignatureLib.recoverSignerAddress(
              signedHash,
              calldataNegativeOffset + SIG_BS
            );
            signerIndex = getAuthorisedSignerIndex(signerAddress);
          }
          // Updating helpful arrays
          {
            bytes32 dataPointDataFeedId;
            uint256 dataPointValue;
            for (uint256 dataPointIndex = 0; dataPointIndex < dataPointsCount; dataPointIndex++) {
              // Extracting data feed id and value for the current data point
              (dataPointDataFeedId, dataPointValue) = _extractDataPointValueAndDataFeedId(
                calldataNegativeOffset,
                eachDataPointValueByteSize,
                dataPointIndex
              );
              for (
                uint256 dataFeedIdIndex = 0;
                dataFeedIdIndex < dataFeedIds.length;
                dataFeedIdIndex++
              ) {
                if (dataPointDataFeedId == dataFeedIds[dataFeedIdIndex]) {
                  uint256 bitmapSignersForDataFeedId = signersBitmapForDataFeedIds[dataFeedIdIndex];
                  if (
                    !BitmapLib.getBitFromBitmap(bitmapSignersForDataFeedId, signerIndex) && /* current signer was not counted for current dataFeedId */
                    uniqueSignerCountForDataFeedIds[dataFeedIdIndex] < getUniqueSignersThreshold()
                  ) {
                    // Increase unique signer counter
                    uniqueSignerCountForDataFeedIds[dataFeedIdIndex]++;
                    // Add new value
                    valuesForDataFeeds[dataFeedIdIndex][
                      uniqueSignerCountForDataFeedIds[dataFeedIdIndex] - 1
                    ] = dataPointValue;
                    // Update signers bitmap
                    signersBitmapForDataFeedIds[dataFeedIdIndex] = BitmapLib.setBitInBitmap(
                      bitmapSignersForDataFeedId,
                      signerIndex
                    );
                  }
                  // Breaking, as there couldn't be several indexes for the same feed ID
                  break;
                }
              }
            }
          }
          // Return total data package byte size
          return
            DATA_PACKAGE_WITHOUT_DATA_POINTS_BS +
            (eachDataPointValueByteSize + DATA_POINT_SYMBOL_BS) *
            dataPointsCount;
        }
        /**
         * @dev This is a private helpful function, which aggregates values from different
         * authorised signers for the given arrays of values for each data feed
         *
         * @param valuesForDataFeeds 2-dimensional array, valuesForDataFeeds[i][j] contains
         * j-th value for the i-th data feed
         * @param uniqueSignerCountForDataFeedIds an array with the numbers of unique signers
         * for each data feed
         *
         * @return An array of the aggregated values
         */
        function _getAggregatedValues(
          uint256[][] memory valuesForDataFeeds,
          uint256[] memory uniqueSignerCountForDataFeedIds
        ) private view returns (uint256[] memory) {
          uint256[] memory aggregatedValues = new uint256[](valuesForDataFeeds.length);
          uint256 uniqueSignersThreshold = getUniqueSignersThreshold();
          for (uint256 dataFeedIndex = 0; dataFeedIndex < valuesForDataFeeds.length; dataFeedIndex++) {
            if (uniqueSignerCountForDataFeedIds[dataFeedIndex] < uniqueSignersThreshold) {
              revert InsufficientNumberOfUniqueSigners(
                uniqueSignerCountForDataFeedIds[dataFeedIndex],
                uniqueSignersThreshold);
            }
            uint256 aggregatedValueForDataFeedId = aggregateValues(valuesForDataFeeds[dataFeedIndex]);
            aggregatedValues[dataFeedIndex] = aggregatedValueForDataFeedId;
          }
          return aggregatedValues;
        }
      }
      // SPDX-License-Identifier: BUSL-1.1
      pragma solidity ^0.8.4;
      import "./RedstoneConsumerBase.sol";
      /**
       * @title The base contract for Redstone consumers' contracts that allows to
       * securely calculate numeric redstone oracle values
       * @author The Redstone Oracles team
       * @dev This contract can extend other contracts to allow them
       * securely fetch Redstone oracle data from transactions calldata
       */
      abstract contract RedstoneConsumerNumericBase is RedstoneConsumerBase {
        /**
         * @dev This function can be used in a consumer contract to securely extract an
         * oracle value for a given data feed id. Security is achieved by
         * signatures verification, timestamp validation, and aggregating values
         * from different authorised signers into a single numeric value. If any of the
         * required conditions do not match, the function will revert.
         * Note! This function expects that tx calldata contains redstone payload in the end
         * Learn more about redstone payload here: https://github.com/redstone-finance/redstone-oracles-monorepo/tree/main/packages/evm-connector#readme
         * @param dataFeedId bytes32 value that uniquely identifies the data feed
         * @return Extracted and verified numeric oracle value for the given data feed id
         */
        function getOracleNumericValueFromTxMsg(bytes32 dataFeedId)
          internal
          view
          virtual
          returns (uint256)
        {
          bytes32[] memory dataFeedIds = new bytes32[](1);
          dataFeedIds[0] = dataFeedId;
          return getOracleNumericValuesFromTxMsg(dataFeedIds)[0];
        }
        /**
         * @dev This function can be used in a consumer contract to securely extract several
         * numeric oracle values for a given array of data feed ids. Security is achieved by
         * signatures verification, timestamp validation, and aggregating values
         * from different authorised signers into a single numeric value. If any of the
         * required conditions do not match, the function will revert.
         * Note! This function expects that tx calldata contains redstone payload in the end
         * Learn more about redstone payload here: https://github.com/redstone-finance/redstone-oracles-monorepo/tree/main/packages/evm-connector#readme
         * @param dataFeedIds An array of unique data feed identifiers
         * @return An array of the extracted and verified oracle values in the same order
         * as they are requested in the dataFeedIds array
         */
        function getOracleNumericValuesFromTxMsg(bytes32[] memory dataFeedIds)
          internal
          view
          virtual
          returns (uint256[] memory)
        {
          return _securelyExtractOracleValuesFromTxMsg(dataFeedIds);
        }
        /**
         * @dev This function works similarly to the `getOracleNumericValuesFromTxMsg` with the
         * only difference that it allows to request oracle data for an array of data feeds
         * that may contain duplicates
         * 
         * @param dataFeedIdsWithDuplicates An array of data feed identifiers (duplicates are allowed)
         * @return An array of the extracted and verified oracle values in the same order
         * as they are requested in the dataFeedIdsWithDuplicates array
         */
        function getOracleNumericValuesWithDuplicatesFromTxMsg(bytes32[] memory dataFeedIdsWithDuplicates) internal view returns (uint256[] memory) {
          // Building an array without duplicates
          bytes32[] memory dataFeedIdsWithoutDuplicates = new bytes32[](dataFeedIdsWithDuplicates.length);
          bool alreadyIncluded;
          uint256 uniqueDataFeedIdsCount = 0;
          for (uint256 indexWithDup = 0; indexWithDup < dataFeedIdsWithDuplicates.length; indexWithDup++) {
            // Checking if current element is already included in `dataFeedIdsWithoutDuplicates`
            alreadyIncluded = false;
            for (uint256 indexWithoutDup = 0; indexWithoutDup < uniqueDataFeedIdsCount; indexWithoutDup++) {
              if (dataFeedIdsWithoutDuplicates[indexWithoutDup] == dataFeedIdsWithDuplicates[indexWithDup]) {
                alreadyIncluded = true;
                break;
              }
            }
            // Adding if not included
            if (!alreadyIncluded) {
              dataFeedIdsWithoutDuplicates[uniqueDataFeedIdsCount] = dataFeedIdsWithDuplicates[indexWithDup];
              uniqueDataFeedIdsCount++;
            }
          }
          // Overriding dataFeedIdsWithoutDuplicates.length
          // Equivalent to: dataFeedIdsWithoutDuplicates.length = uniqueDataFeedIdsCount;
          assembly {
            mstore(dataFeedIdsWithoutDuplicates, uniqueDataFeedIdsCount)
          }
          // Requesting oracle values (without duplicates)
          uint256[] memory valuesWithoutDuplicates = getOracleNumericValuesFromTxMsg(dataFeedIdsWithoutDuplicates);
          // Preparing result values array
          uint256[] memory valuesWithDuplicates = new uint256[](dataFeedIdsWithDuplicates.length);
          for (uint256 indexWithDup = 0; indexWithDup < dataFeedIdsWithDuplicates.length; indexWithDup++) {
            for (uint256 indexWithoutDup = 0; indexWithoutDup < dataFeedIdsWithoutDuplicates.length; indexWithoutDup++) {
              if (dataFeedIdsWithDuplicates[indexWithDup] == dataFeedIdsWithoutDuplicates[indexWithoutDup]) {
                valuesWithDuplicates[indexWithDup] = valuesWithoutDuplicates[indexWithoutDup];
                break;
              }
            }
          }
          return valuesWithDuplicates;
        }
      }
      // SPDX-License-Identifier: BUSL-1.1
      pragma solidity ^0.8.4;
      import "../libs/NumericArrayLib.sol";
      /**
       * @title Default implementations of virtual redstone consumer base functions
       * @author The Redstone Oracles team
       */
      library RedstoneDefaultsLib {
        uint256 constant DEFAULT_MAX_DATA_TIMESTAMP_DELAY_SECONDS = 3 minutes;
        uint256 constant DEFAULT_MAX_DATA_TIMESTAMP_AHEAD_SECONDS = 1 minutes;
        error TimestampFromTooLongFuture(uint256 receivedTimestampSeconds, uint256 blockTimestamp);
        error TimestampIsTooOld(uint256 receivedTimestampSeconds, uint256 blockTimestamp);
        function validateTimestamp(uint256 receivedTimestampMilliseconds) internal view {
          // Getting data timestamp from future seems quite unlikely
          // But we've already spent too much time with different cases
          // Where block.timestamp was less than dataPackage.timestamp.
          // Some blockchains may case this problem as well.
          // That's why we add MAX_BLOCK_TIMESTAMP_DELAY
          // and allow data "from future" but with a small delay
          uint256 receivedTimestampSeconds = receivedTimestampMilliseconds / 1000;
          if (block.timestamp < receivedTimestampSeconds) {
            if ((receivedTimestampSeconds - block.timestamp) > DEFAULT_MAX_DATA_TIMESTAMP_AHEAD_SECONDS) {
              revert TimestampFromTooLongFuture(receivedTimestampSeconds, block.timestamp);
            }
          } else if ((block.timestamp - receivedTimestampSeconds) > DEFAULT_MAX_DATA_TIMESTAMP_DELAY_SECONDS) {
            revert TimestampIsTooOld(receivedTimestampSeconds, block.timestamp);
          }
        }
        function aggregateValues(uint256[] memory values) internal pure returns (uint256) {
          return NumericArrayLib.pickMedian(values);
        }
      }
      // SPDX-License-Identifier: MIT
      pragma solidity ^0.8.4;
      library BitmapLib {
        function setBitInBitmap(uint256 bitmap, uint256 bitIndex) internal pure returns (uint256) {
          return bitmap | (1 << bitIndex);
        }
        function getBitFromBitmap(uint256 bitmap, uint256 bitIndex) internal pure returns (bool) {
          uint256 bitAtIndex = bitmap & (1 << bitIndex);
          return bitAtIndex > 0;
        }
      }
      // SPDX-License-Identifier: MIT
      pragma solidity ^0.8.4;
      import "../../../../@openzeppelin/contracts/utils/math/SafeMath.sol";
      library NumericArrayLib {
        // This function sort array in memory using bubble sort algorithm,
        // which performs even better than quick sort for small arrays
        uint256 constant BYTES_ARR_LEN_VAR_BS = 32;
        uint256 constant UINT256_VALUE_BS = 32;
        error CanNotPickMedianOfEmptyArray();
        // This function modifies the array
        function pickMedian(uint256[] memory arr) internal pure returns (uint256) {
          if (arr.length == 0) {
            revert CanNotPickMedianOfEmptyArray();
          }
          sort(arr);
          uint256 middleIndex = arr.length / 2;
          if (arr.length % 2 == 0) {
            uint256 sum = SafeMath.add(arr[middleIndex - 1], arr[middleIndex]);
            return sum / 2;
          } else {
            return arr[middleIndex];
          }
        }
        function sort(uint256[] memory arr) internal pure {
          assembly {
            let arrLength := mload(arr)
            let valuesPtr := add(arr, BYTES_ARR_LEN_VAR_BS)
            let endPtr := add(valuesPtr, mul(arrLength, UINT256_VALUE_BS))
            for {
              let arrIPtr := valuesPtr
            } lt(arrIPtr, endPtr) {
              arrIPtr := add(arrIPtr, UINT256_VALUE_BS) // arrIPtr += 32
            } {
              for {
                let arrJPtr := valuesPtr
              } lt(arrJPtr, arrIPtr) {
                arrJPtr := add(arrJPtr, UINT256_VALUE_BS) // arrJPtr += 32
              } {
                let arrI := mload(arrIPtr)
                let arrJ := mload(arrJPtr)
                if lt(arrI, arrJ) {
                  mstore(arrIPtr, arrJ)
                  mstore(arrJPtr, arrI)
                }
              }
            }
          }
        }
      }
      // SPDX-License-Identifier: MIT
      pragma solidity ^0.8.4;
      library SignatureLib {
        uint256 constant ECDSA_SIG_R_BS = 32;
        uint256 constant ECDSA_SIG_S_BS = 32;
        function recoverSignerAddress(bytes32 signedHash, uint256 signatureCalldataNegativeOffset)
          internal
          pure
          returns (address)
        {
          bytes32 r;
          bytes32 s;
          uint8 v;
          assembly {
            let signatureCalldataStartPos := sub(calldatasize(), signatureCalldataNegativeOffset)
            r := calldataload(signatureCalldataStartPos)
            signatureCalldataStartPos := add(signatureCalldataStartPos, ECDSA_SIG_R_BS)
            s := calldataload(signatureCalldataStartPos)
            signatureCalldataStartPos := add(signatureCalldataStartPos, ECDSA_SIG_S_BS)
            v := byte(0, calldataload(signatureCalldataStartPos)) // last byte of the signature memory array
          }
          return ecrecover(signedHash, v, r, s);
        }
      }
      // SPDX-License-Identifier: BUSL-1.1
      pragma solidity ^0.8.4;
      interface IRedstoneAdapter {
        function updateDataFeedsValues(uint256 proposedTimestamp) external;
        function getValueForDataFeed(bytes32 dataFeedId) external view returns (uint256);
        function getValuesForDataFeeds(bytes32[] memory requestedDataFeedIds) external view returns (uint256[] memory);
        function getTimestampsFromLatestUpdate() external view returns (uint128 dataTimestamp, uint128 blockTimestamp);
        function getDataFeedIds() external view returns (bytes32[] memory);
        function getDataFeedIndex(bytes32 dataFeedId) external view returns (uint256);
        function getMinIntervalBetweenUpdates() external view returns (uint256);
        function validateProposedDataPackagesTimestamp(uint256 proposedDataTimestamp) external view;
        function requireAuthorisedUpdater(address updater) external view;
      }
      // SPDX-License-Identifier: BUSL-1.1
      pragma solidity ^0.8.4;
      import "../../../../../@redstone-finance/evm-connector/contracts/core/RedstoneConsumerNumericBase.sol";
      import "./IRedstoneAdapter.sol";
      /**
       * @title Core logic of RedStone Adapter Contract
       * @author The Redstone Oracles team
       * @dev This contract is used to repeatedly push RedStone data to blockchain storage
       * More details here: https://docs.redstone.finance/docs/smart-contract-devs/get-started/redstone-classic
       *
       * Key details about the contract:
       * - Values for data feeds can be updated using the `updateDataFeedsValues` function
       * - All data feeds must be updated within a single call, partial updates are not allowed
       * - There is a configurable minimum interval between updates
       * - Updaters can be restricted by overriding `requireAuthorisedUpdater` function
       * - The contract is designed to force values validation, by default it prevents returning zero values
       * - All data packages in redstone payload must have the same timestamp,
       *    equal to `dataPackagesTimestamp` argument of the `updateDataFeedsValues` function
       */
      abstract contract RedstoneAdapterBase is RedstoneConsumerNumericBase, IRedstoneAdapter {
        // We don't use storage variables to avoid potential problems with upgradable contracts
        bytes32 internal constant LATEST_UPDATE_TIMESTAMPS_STORAGE_LOCATION = 0x3d01e4d77237ea0f771f1786da4d4ff757fcba6a92933aa53b1dcef2d6bd6fe2; // keccak256("RedStone.lastUpdateTimestamp");
        uint256 internal constant MIN_INTERVAL_BETWEEN_UPDATES = 3 seconds;
        uint256 internal constant BITS_COUNT_IN_16_BYTES = 128;
        error DataTimestampShouldBeNewerThanBefore(
          uint256 receivedDataTimestampMilliseconds,
          uint256 lastDataTimestampMilliseconds
        );
        error MinIntervalBetweenUpdatesHasNotPassedYet(
          uint256 currentBlockTimestamp,
          uint256 lastUpdateTimestamp,
          uint256 minIntervalBetweenUpdates
        );
        error DataPackageTimestampMismatch(uint256 expectedDataTimestamp, uint256 dataPackageTimestamp);
        error DataFeedValueCannotBeZero(bytes32 dataFeedId);
        error DataFeedIdNotFound(bytes32 dataFeedId);
        // This function should throw if msg.sender is not allowed to update data feed values
        // By default, anyone can update data feed values, but it can be overridden
        function requireAuthorisedUpdater(address updater) public view virtual {}
        function getDataFeedIds() public view virtual returns (bytes32[] memory) {
          return new bytes32[](0);
        }
        // This function can be overriden to reduce gas costs
        function getDataFeedIndex(bytes32 dataFeedId) public view virtual returns (uint256) {
          bytes32[] memory dataFeedIds = getDataFeedIds();
          for (uint256 i = 0; i < dataFeedIds.length; i++) {
            if (dataFeedIds[i] == dataFeedId) {
              return i;
            }
          }
          revert DataFeedIdNotFound(dataFeedId);
        }
        // This function requires redstone payload attached to the tx calldata
        function updateDataFeedsValues(uint256 dataPackagesTimestamp) public {
          requireAuthorisedUpdater(msg.sender);
          _assertMinIntervalBetweenUpdatesPassed();
          validateProposedDataPackagesTimestamp(dataPackagesTimestamp);
          _saveTimestampsOfCurrentUpdate(dataPackagesTimestamp);
          bytes32[] memory dataFeedsIdsArray = getDataFeedIds();
          // It will trigger timestamp validation for each data package
          uint256[] memory oracleValues = getOracleNumericValuesFromTxMsg(dataFeedsIdsArray);
          validateAndUpdateDataFeedsValues(dataFeedsIdsArray, oracleValues);
        }
        // Note! This function is not called directly, it's called for each data package
        // in redstone payload and just verifies if each data package has the same timestamp
        // as the one that was saved in storage
        function validateTimestamp(uint256 receivedTimestampMilliseconds) public view virtual override {
          // It means that we are in the special view context and we can skip validation of the
          // timestamp. It can be useful for calling view functions, as they can not modify the contract
          // state to pass the timestamp validation below
          if (msg.sender == address(0)) {
            return;
          }
          uint256 expectedDataPackageTimestamp = getDataTimestampFromLatestUpdate();
          if (receivedTimestampMilliseconds != expectedDataPackageTimestamp) {
            revert DataPackageTimestampMismatch(
              expectedDataPackageTimestamp,
              receivedTimestampMilliseconds
            );
          }
        }
        function validateAndUpdateDataFeedsValues(bytes32[] memory dataFeedIdsArray, uint256[] memory values) internal virtual;
        function _assertMinIntervalBetweenUpdatesPassed() private view {
          uint256 currentBlockTimestamp = getBlockTimestamp();
          uint256 blockTimestampFromLatestUpdate = getBlockTimestampFromLatestUpdate();
          uint256 minIntervalBetweenUpdates = getMinIntervalBetweenUpdates();
          if (currentBlockTimestamp < blockTimestampFromLatestUpdate + minIntervalBetweenUpdates) {
            revert MinIntervalBetweenUpdatesHasNotPassedYet(
              currentBlockTimestamp,
              blockTimestampFromLatestUpdate,
              minIntervalBetweenUpdates
            );
          }
        }
        // You can override this function to change the required interval between udpates
        // Avoid setting it to 0, as it may open many attack vectors
        function getMinIntervalBetweenUpdates() public view virtual returns (uint256) {
          return MIN_INTERVAL_BETWEEN_UPDATES;
        }
        function validateProposedDataPackagesTimestamp(uint256 dataPackagesTimestamp) public view {
          preventUpdateWithOlderDataPackages(dataPackagesTimestamp);
          validateDataPackagesTimestampOnce(dataPackagesTimestamp);
        }
        function validateDataPackagesTimestampOnce(uint256 dataPackagesTimestamp) public view virtual {
          uint256 receivedTimestampSeconds = dataPackagesTimestamp / 1000;
          (uint256 maxDataAheadSeconds, uint256 maxDataDelaySeconds) = getAllowedTimestampDiffsInSeconds();
          if (getBlockTimestamp() < receivedTimestampSeconds) {
            if ((receivedTimestampSeconds - getBlockTimestamp()) > maxDataAheadSeconds) {
              revert RedstoneDefaultsLib.TimestampFromTooLongFuture(receivedTimestampSeconds, getBlockTimestamp());
            }
          } else if ((getBlockTimestamp() - receivedTimestampSeconds) > maxDataDelaySeconds) {
            revert RedstoneDefaultsLib.TimestampIsTooOld(receivedTimestampSeconds, getBlockTimestamp());
          }
        }
        // This function can be overriden, e.g. to use block.number instead of block.timestamp
        // It can be useful in some L2 chains, as sometimes their different blocks can have the same timestamp
        function getBlockTimestamp() public view virtual returns (uint256) {
          return block.timestamp;
        }
        function getAllowedTimestampDiffsInSeconds() public view virtual returns (uint256 maxDataAheadSeconds, uint256 maxDataDelaySeconds) {
          maxDataAheadSeconds = RedstoneDefaultsLib.DEFAULT_MAX_DATA_TIMESTAMP_AHEAD_SECONDS;
          maxDataDelaySeconds = RedstoneDefaultsLib.DEFAULT_MAX_DATA_TIMESTAMP_DELAY_SECONDS;
        }
        function preventUpdateWithOlderDataPackages(uint256 dataPackagesTimestamp) internal view {
          uint256 dataTimestampFromLatestUpdate = getDataTimestampFromLatestUpdate();
          if (dataPackagesTimestamp <= dataTimestampFromLatestUpdate) {
            revert DataTimestampShouldBeNewerThanBefore(
              dataPackagesTimestamp,
              dataTimestampFromLatestUpdate
            );
          }
        }
        function getDataTimestampFromLatestUpdate() public view virtual returns (uint256 lastDataTimestamp) {
          (lastDataTimestamp, ) = getTimestampsFromLatestUpdate();
        }
        function getBlockTimestampFromLatestUpdate() public view returns (uint256 blockTimestamp) {
          (, blockTimestamp) = getTimestampsFromLatestUpdate();
        }
        function getPackedTimestampsFromLatestUpdate() public view returns (uint256 packedTimestamps) {
          assembly {
            packedTimestamps := sload(LATEST_UPDATE_TIMESTAMPS_STORAGE_LOCATION)
          }
        }
        function getTimestampsFromLatestUpdate() public view virtual returns (uint128 dataTimestamp, uint128 blockTimestamp) {
          return _unpackTimestamps(getPackedTimestampsFromLatestUpdate());
        }
        function _unpackTimestamps(uint256 packedTimestamps) internal pure returns (uint128 dataTimestamp, uint128 blockTimestamp) {
          dataTimestamp = uint128(packedTimestamps >> 128); // first 128 bits
          blockTimestamp = uint128(packedTimestamps); // last 128 bits
        }
        function _saveTimestampsOfCurrentUpdate(uint256 dataPackagesTimestamp) internal virtual {
          uint256 blockTimestamp = getBlockTimestamp();
          assembly {
            let timestamps := or(shl(BITS_COUNT_IN_16_BYTES, dataPackagesTimestamp), blockTimestamp)
            sstore(LATEST_UPDATE_TIMESTAMPS_STORAGE_LOCATION, timestamps)
          }
        }
        function getValueForDataFeed(bytes32 dataFeedId) public view returns (uint256) {
          getDataFeedIndex(dataFeedId); // will revert if data feed id is not supported
          uint256 valueForDataFeed = getValueForDataFeedUnsafe(dataFeedId);
          validateDataFeedValue(dataFeedId, valueForDataFeed);
          return valueForDataFeed;
        }
        function getValuesForDataFeeds(bytes32[] memory requestedDataFeedIds) public view returns (uint256[] memory) {
          uint256[] memory values = getValuesForDataFeedUnsafe(requestedDataFeedIds);
          for (uint256 i = 0; i < requestedDataFeedIds.length; i++) {
            bytes32 dataFeedId = requestedDataFeedIds[i];
            getDataFeedIndex(dataFeedId); // will revert if data feed id is not supported
            validateDataFeedValue(dataFeedId, values[i]);
          }
          return values;
        }
        function validateDataFeedValue(bytes32 dataFeedId, uint256 valueForDataFeed) public pure virtual {
          if (valueForDataFeed == 0) {
            revert DataFeedValueCannotBeZero(dataFeedId);
          }
        }
        function getValueForDataFeedUnsafe(bytes32 dataFeedId) public view virtual returns (uint256);
        function getValuesForDataFeedUnsafe(bytes32[] memory requestedDataFeedIds) public view virtual returns (uint256[] memory values) {
          values = new uint256[](requestedDataFeedIds.length);
          for (uint256 i = 0; i < requestedDataFeedIds.length; i++) {
            values[i] = getValueForDataFeedUnsafe(requestedDataFeedIds[i]);
          }
          return values;
        }
      }
      // SPDX-License-Identifier: BUSL-1.1
      pragma solidity ^0.8.4;
      import "../../../../../@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
      import "../core/RedstoneAdapterBase.sol";
      abstract contract PriceFeedsAdapterBase is RedstoneAdapterBase, Initializable {
        function initialize() public initializer {}
        
        // Note! This function is virtual and may contain additional logic in the derived contract
        // For example it can check if the updating conditions are met (e.g. at least one value is deviated enough)
        function validateAndUpdateDataFeedsValues(
          bytes32[] memory dataFeedsIdsArray,
          uint256[] memory values
        ) internal virtual override {
          for (uint256 i = 0; i < dataFeedsIdsArray.length; i++) {
            bytes32 dataFeedId = dataFeedsIdsArray[i];
            _updateDataFeedValue(dataFeedId, values[i]);
          }
        }
        function _updateDataFeedValue(bytes32 dataFeedId, uint256 value) internal virtual;
      }
      // SPDX-License-Identifier: BUSL-1.1
      pragma solidity ^0.8.4;
      import "../PriceFeedsAdapterBase.sol";
      abstract contract PriceFeedsAdapterWithRounds is PriceFeedsAdapterBase {
        bytes32 constant VALUES_MAPPING_STORAGE_LOCATION = 0x4dd0c77efa6f6d590c97573d8c70b714546e7311202ff7c11c484cc841d91bfc; // keccak256("RedStone.oracleValuesMapping");
        bytes32 constant ROUND_TIMESTAMPS_MAPPING_STORAGE_LOCATION = 0x207e00944d909d1224f0c253d58489121d736649f8393199f55eecf4f0cf3eb0; // keccak256("RedStone.roundTimestampMapping");
        bytes32 constant LATEST_ROUND_ID_STORAGE_LOCATION = 0xc68d7f1ee07d8668991a8951e720010c9d44c2f11c06b5cac61fbc4083263938; // keccak256("RedStone.latestRoundId");
        error RoundNotFound(uint256 roundId);
        function validateAndUpdateDataFeedsValues(
          bytes32[] memory dataFeedsIdsArray,
          uint256[] memory values
        ) internal virtual override {
          _incrementLatestRoundId();
          _updatePackedTimestampsForLatestRound();
          for (uint256 i = 0; i < dataFeedsIdsArray.length; i++) {
            bytes32 dataFeedId = dataFeedsIdsArray[i];
            _updateDataFeedValue(dataFeedId, values[i]);
          }
        }
        function _updateDataFeedValue(bytes32 dataFeedId, uint256 dataFeedValue) internal virtual override {
          validateDataFeedValue(dataFeedId, dataFeedValue);
          bytes32 locationInStorage = _getValueLocationInStorage(dataFeedId, getLatestRoundId());
          assembly {
            sstore(locationInStorage, dataFeedValue)
          }
        }
        function getValueForDataFeedUnsafe(bytes32 dataFeedId) public view override returns (uint256 dataFeedValue) {
          return getValueForDataFeedAndRound(dataFeedId, getLatestRoundId());
        }
        function getValueForDataFeedAndRound(bytes32 dataFeedId, uint256 roundId) public view returns (uint256 dataFeedValue) {
          bytes32 locationInStorage = _getValueLocationInStorage(dataFeedId, roundId);
          assembly {
            dataFeedValue := sload(locationInStorage)
          }
        }
        function getLatestRoundParams() public view returns ( uint256 latestRoundId, uint128 latestRoundDataTimestamp, uint128 latestRoundBlockTimestamp) {
          latestRoundId = getLatestRoundId();
          uint256 packedRoundTimestamps = getPackedTimestampsForRound(latestRoundId);
          (latestRoundDataTimestamp, latestRoundBlockTimestamp) = _unpackTimestamps(
            packedRoundTimestamps
          );
        }
        function getRoundData(bytes32 dataFeedId, uint256 roundId) public view returns (uint256 dataFeedValue, uint128 roundDataTimestamp, uint128 roundBlockTimestamp) {
          if (roundId > getLatestRoundId() || roundId == 0) {
            revert RoundNotFound(roundId);
          }
          dataFeedValue = getValueForDataFeedAndRound(dataFeedId, roundId);
          uint256 packedRoundTimestamps = getPackedTimestampsForRound(roundId);
          (roundDataTimestamp, roundBlockTimestamp) = _unpackTimestamps(packedRoundTimestamps);
        }
        function _getValueLocationInStorage(bytes32 dataFeedId, uint256 roundId) private pure returns (bytes32) {
          return keccak256(abi.encode(dataFeedId, roundId, VALUES_MAPPING_STORAGE_LOCATION));
        }
        function _getRoundTimestampsLocationInStorage(uint256 roundId) private pure returns (bytes32) {
          return keccak256(abi.encode(roundId, ROUND_TIMESTAMPS_MAPPING_STORAGE_LOCATION));
        }
        function getLatestRoundId() public view returns (uint256 latestRoundId) {
          assembly {
            latestRoundId := sload(LATEST_ROUND_ID_STORAGE_LOCATION)
          }
        }
        function _incrementLatestRoundId() private {
          uint256 latestRoundId = getLatestRoundId();
          assembly {
            sstore(LATEST_ROUND_ID_STORAGE_LOCATION, add(latestRoundId, 1))
          }
        }
        function getPackedTimestampsForRound(uint256 roundId) public view returns (uint256 roundTimestamp) {
          bytes32 locationInStorage = _getRoundTimestampsLocationInStorage(roundId);
          assembly {
            roundTimestamp := sload(locationInStorage)
          }
        }
        function _updatePackedTimestampsForLatestRound() private {
          uint256 packedTimestamps = getPackedTimestampsFromLatestUpdate();
          uint256 latestRoundId = getLatestRoundId();
          bytes32 locationInStorage = _getRoundTimestampsLocationInStorage(latestRoundId);
          assembly {
            sstore(locationInStorage, packedTimestamps)
          }
        }
      }
      // SPDX-License-Identifier: BUSL-1.1
      pragma solidity ^0.8.4;
      import "../__C0/redstone-oracles-monorepo/packages/on-chain-relayer/contracts/price-feeds/with-rounds/PriceFeedsAdapterWithRounds.sol";
      contract PriceFeedsAdapterStaderEthxWithRounds is PriceFeedsAdapterWithRounds {
        bytes32 constant private ETHx_ID = bytes32("ETHx");
        error UpdaterNotAuthorised(address signer);
        function getDataFeedIds() public pure override returns (bytes32[] memory dataFeedIds) {
          dataFeedIds = new bytes32[](1);
          dataFeedIds[0] = ETHx_ID;
        }
        function getUniqueSignersThreshold() public view virtual override returns (uint8) {
          return 2;
        }
        function requireAuthorisedUpdater(address updater) public view override virtual {
          if (updater != 0x378AB7B007b0Cf1AF7E10b78F3287d6F2Bb4955F ) {
            revert UpdaterNotAuthorised(updater);
          }
        }
        function getDataFeedIndex(bytes32 dataFeedId) public view override virtual returns (uint256) {
          if (dataFeedId == ETHx_ID) { return 0; }
          revert DataFeedIdNotFound(dataFeedId);
        }
        function getAuthorisedSignerIndex(
          address signerAddress
        ) public view virtual override returns (uint8) {
          if (signerAddress == 0x8BB8F32Df04c8b654987DAaeD53D6B6091e3B774) { return 0; }
          else if (signerAddress == 0xdEB22f54738d54976C4c0fe5ce6d408E40d88499) { return 1; }
          else if (signerAddress == 0x51Ce04Be4b3E32572C4Ec9135221d0691Ba7d202) { return 2; }
          else if (signerAddress == 0xDD682daEC5A90dD295d14DA4b0bec9281017b5bE) { return 3; }
          else if (signerAddress == 0x9c5AE89C4Af6aA32cE58588DBaF90d18a855B6de) { return 4; }
          else {
            revert SignerNotAuthorised(signerAddress);
          }
        }
      }
      // SPDX-License-Identifier: BUSL-1.1
      pragma solidity ^0.8.4;
      import {PriceFeedsAdapterStaderEthxWithRounds} from "./PriceFeedsAdapterStaderEthxWithRounds.sol";
      import {OldGelatoAddress, GelatoAddress} from "../__addresses/Addresses.sol";
      contract PriceFeedsAdapterStaderEthxWithRoundsV2 is PriceFeedsAdapterStaderEthxWithRounds {
        address internal constant MAIN_UPDATER_ADDRESS = 0x378AB7B007b0Cf1AF7E10b78F3287d6F2Bb4955F;
        address internal constant FALLBACK_UPDATER_ADDRESS = 0xF639b67317bB049607Ef15b68184fE19c60895fC;
        address internal constant MANUAL_UPDATER_ADDRESS = 0xB182f6A8E931b586Bb02f7100645Fd2bA0ab0D0D;
        function requireAuthorisedUpdater(address updater) public view override virtual {
          if (
            updater != MAIN_UPDATER_ADDRESS &&
            updater != FALLBACK_UPDATER_ADDRESS &&
            updater != MANUAL_UPDATER_ADDRESS &&
            updater != GelatoAddress.ADDR &&
            updater != OldGelatoAddress.ADDR
          ) {
            revert UpdaterNotAuthorised(updater);
          }
        }
      }