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// SPDX-License-Identifier: MIT
pragma solidity 0.8.22;
// Vendor
import { Diamond } from "./vendor/Diamond.sol";
// Routers
import { Routers } from "./routers/Routers.sol";
//                  ______                                   __                     __  __    ____
//                 /\\  _  \\                                 /\\ \\__                 /\\ \\/\\ \\  /'___\\
//                 \\ \\ \\L\\ \\  __  __     __   __  __    ____\\ \\ ,_\\  __  __    ____\\ \\ \\ \\ \\/\\ \\__/
//                  \\ \\  __ \\/\\ \\/\\ \\  /'_ `\\/\\ \\/\\ \\  /',__\\\\ \\ \\/ /\\ \\/\\ \\  /',__\\\\ \\ \\ \\ \\ \\  _``\\
//                   \\ \\ \\/\\ \\ \\ \\_\\ \\/\\ \\L\\ \\ \\ \\_\\ \\/\\__, `\\\\ \\ \\_\\ \\ \\_\\ \\/\\__, `\\\\ \\ \\_/ \\ \\ \\L\\ \\
//                    \\ \\_\\ \\_\\ \\____/\\ \\____ \\ \\____/\\/\\____/ \\ \\__\\\\ \\____/\\/\\____/ \\ `\\___/\\ \\____/
//                     \\/_/\\/_/\\/___/  \\/___L\\ \\/___/  \\/___/   \\/__/ \\/___/  \\/___/   `\\/__/  \\/___/
//                                       /\\____/
//                                       \\_/__/
/// @title AugustusV6
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pragma solidity ^0.4.17;
/**
 * @title SafeMath
 * @dev Math operations with safety checks that throw on error
 */
library SafeMath {
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        if (a == 0) {
            return 0;
        }
        uint256 c = a * b;
        assert(c / a == b);
        return c;
    }
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pragma solidity 0.4.24;
// File: openzeppelin-solidity/contracts/token/ERC20/ERC20Basic.sol
/**
 * @title ERC20Basic
 * @dev Simpler version of ERC20 interface
 * See https://github.com/ethereum/EIPs/issues/179
 */
contract ERC20Basic {
  function totalSupply() public view returns (uint256);
  function balanceOf(address _who) public view returns (uint256);
  function transfer(address _to, uint256 _value) public returns (bool);
  event Transfer(address indexed from, address indexed to, uint256 value);
}
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pragma solidity 0.8.10;
import "@openzeppelin/contracts/utils/cryptography/draft-EIP712.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "@openzeppelin/contracts/token/ERC721/IERC721.sol";
import "@openzeppelin/contracts/token/ERC1155/IERC1155.sol";
import "@openzeppelin/contracts/utils/cryptography/SignatureChecker.sol";
import "./IERC20Permit.sol";
contract AugustusRFQ is EIP712("AUGUSTUS RFQ", "1") {
    using SafeERC20 for IERC20;
    struct Order {
        uint256 nonceAndMeta; // Nonce and taker specific metadata
        uint128 expiry;
        address makerAsset;
        address takerAsset;
        address maker;
        address taker;  // zero address on orders executable by anyone
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