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// Sources flattened with hardhat v2.1.2 https://hardhat.org
// File @openzeppelin/contracts/math/SafeMath.sol@v3.4.0
//SPDX-License-Identifier: MIT
pragma solidity >=0.6.0 <0.8.0;
/**
 * @dev Wrappers over Solidity's arithmetic operations with added overflow
 * checks.
 *
 * Arithmetic operations in Solidity wrap on overflow. This can easily result
 * in bugs, because programmers usually assume that an overflow raises an
 * error, which is the standard behavior in high level programming languages.
 * `SafeMath` restores this intuition by reverting the transaction when an
 * operation overflows.
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// Sources flattened with hardhat v2.1.2 https://hardhat.org
// File @openzeppelin/contracts/utils/EnumerableSet.sol@v3.4.0
// SPDX-License-Identifier: MIT
pragma solidity >=0.6.0 <0.8.0;
/**
 * @dev Library for managing
 * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive
 * types.
 *
 * Sets have the following properties:
 *
 * - Elements are added, removed, and checked for existence in constant time
 * (O(1)).
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//SPDX-License-Identifier: MIT
pragma solidity ^0.7.0;
import "@openzeppelin/contracts/presets/ERC721PresetMinterPauserAutoId.sol";
contract EvilTeddyBear is ERC721PresetMinterPauserAutoId {
    constructor(
        string memory name,
        string memory symbol,
        string memory baseURI
    ) ERC721PresetMinterPauserAutoId(name, symbol, baseURI) {}
    function setTokenURI(uint256 tokenId, string memory _tokenURI) external {
        require(
            hasRole(DEFAULT_ADMIN_ROLE, _msgSender()),
            "StrayCat: must have admin role"
        );
        super._setTokenURI(tokenId, _tokenURI);
    }
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pragma solidity 0.6.6;
/**
 * @title The Owned contract
 * @notice A contract with helpers for basic contract ownership.
 */
contract Owned {
  address payable public owner;
  address private pendingOwner;
  event OwnershipTransferRequested(
    address indexed from,
    address indexed to
  );
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// SPDX-License-Identifier: MIT
pragma solidity ^0.7.1;
import "./OffchainAggregator.sol";
import "./SimpleReadAccessController.sol";
/**
 * @notice Wrapper of OffchainAggregator which checks read access on Aggregator-interface methods
 */
contract AccessControlledOffchainAggregator is OffchainAggregator, SimpleReadAccessController {
  constructor(
    uint32 _maximumGasPrice,
    uint32 _reasonableGasPrice,
    uint32 _microLinkPerEth,
    uint32 _linkGweiPerObservation,
    uint32 _linkGweiPerTransmission,
    address _link,
    int192 _minAnswer,
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