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IERC20.sol
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IERC20.sol
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// SPDX-License-Identifier: Apache-2.0.
pragma solidity ^0.6.12;
/**
Interface of the ERC20 standard as defined in the EIP. Does not include
the optional functions; to access them see {ERC20Detailed}.
*/
interface IERC20 {
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address recipient, uint256 amount) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(
address sender,
address recipient,
uint256 amount
) external returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
}