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// SPDX-License-Identifier: MIT | |
//Imports | |
pragma solidity ^0.8.0; | |
// OpenZeppelin Contracts v4.4.1 (token/ERC20/IERC20.sol) | |
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// SPDX-License-Identifier: MIT | |
//Imports | |
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 |
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// SPDX-License-Identifier: MIT | |
pragma solidity ^0.8.0; | |
// Imports | |
/** | |
* @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 |
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// SPDX-License-Identifier: MIT | |
pragma solidity ^0.8.0; | |
// Imports | |
/** | |
* @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 |
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// SPDX-License-Identifier: GPL-3.0 | |
// File: @openzeppelin/contracts/utils/introspection/IERC165.sol | |
pragma solidity ^0.8.0; | |
/** | |
* @dev Interface of the ERC165 standard, as defined in the | |
* https://eips.ethereum.org/EIPS/eip-165[EIP]. | |
* | |
* Implementers can declare support of contract interfaces, which can then be |
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// SPDX-License-Identifier: MIT | |
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 |
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// SPDX-License-Identifier: MIT | |
pragma solidity ^0.8.0; | |
//Imports | |
/** | |
* @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). |
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// SPDX-License-Identifier: MIT | |
pragma solidity ^0.8.0; | |
// OpenZeppelin Contracts v4.4.1 (token/ERC20/IERC20.sol) | |
/** | |
* @dev Interface of the ERC20 standard as defined in the EIP. | |
*/ |
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// SPDX-License-Identifier: MIT | |
pragma solidity ^0.8.0; | |
//Imports | |
/** | |
* @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). |
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/** | |
*Submitted for verification at FtmScan.com on 2022-02-23 | |
*/ | |
// SPDX-License-Identifier: MIT | |
//Imports | |
pragma solidity ^0.8.0; | |
/** | |
* @dev Provides information about the current execution context, including the |
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