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// SPDX-License-Identifier: GPL-3.0
pragma solidity 0.6.12;
interface IZeroEx {
    function getFunctionImplementation(bytes4 _signature) external returns (address);
}// SPDX-License-Identifier: GPL-3.0
pragma solidity 0.6.12;
pragma experimental ABIEncoderV2;
import "./IZeroEx.sol";
import "@0x/contracts-utils/contracts/src/v06/LibBytesV06.sol";
import "@0x/contracts-zero-ex/contracts/src/errors/LibProxyRichErrors.sol";
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/token/ERC20/SafeERC20.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
/// @title Coinbase proxy contract for 0x proxy
/// @dev A generic proxy contract which extracts a fee before delegation
contract ZeroExProxy is Ownable {
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// File: contracts/common/UnstructuredStorage.sol
/*
 * SPDX-License-Identitifer:    MIT
 */
pragma solidity ^0.4.24;
library UnstructuredStorage {
    function getStorageBool(bytes32 position) internal view returns (bool data) {
        assembly { data := sload(position) }
    }
    function getStorageAddress(bytes32 position) internal view returns (address data) {
        assembly { data := sload(position) }
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/**
 *Submitted for verification at Etherscan.io on 2020-02-06
*/
// File: contracts/acl/IACL.sol
/*
 * SPDX-License-Identifier:    MIT
 */
pragma solidity ^0.4.24;
interface IACL {
    function initialize(address permissionsCreator) external;
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// File: contracts/acl/IACL.sol
/*
 * SPDX-License-Identitifer:    MIT
 */
pragma solidity ^0.4.24;
interface IACL {
    function initialize(address permissionsCreator) external;
    // TODO: this should be external
    // See https://github.com/ethereum/solidity/issues/4832
    function hasPermission(address who, address where, bytes32 what, bytes how) public view returns (bool);
}
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/*
 * SPDX-License-Identifier:    MIT
 */
pragma solidity ^0.4.24;
contract ACLSyntaxSugar {
    function arr() internal pure returns (uint256[]) {
        return new uint256[](0);
    }
    function arr(bytes32 _a) internal pure returns (uint256[] r) {
        return arr(uint256(_a));
    }
    function arr(bytes32 _a, bytes32 _b) internal pure returns (uint256[] r) {
        return arr(uint256(_a), uint256(_b));
    }
    function arr(address _a) internal pure returns (uint256[] r) {
        return arr(uint256(_a));
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/*
  Copyright 2020 ZeroEx Intl.
  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.
  You may obtain a copy of the License at
    http://www.apache.org/licenses/LICENSE-2.0
  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.
*/
pragma solidity ^0.6.5;
pragma experimental ABIEncoderV2;
import "@0x/contracts-utils/contracts/src/v06/LibBytesV06.sol";
import "./migrations/LibBootstrap.sol";
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