// SPDX-License-Identifier: MIT

pragma solidity ^0.6.0;

import "./ERC1155Receiver.sol";
import "../../Initializable.sol";

/**
 * @dev _Available since v3.1._
 */
contract ERC1155HolderUpgradeSafe is Initializable, ERC1155ReceiverUpgradeSafe {
    function __ERC1155Holder_init() internal initializer {
        __ERC165_init_unchained();
        __ERC1155Receiver_init_unchained();
        __ERC1155Holder_init_unchained();
    }

    function __ERC1155Holder_init_unchained() internal initializer {


    }

    function onERC1155Received(address, address, uint256, uint256, bytes memory) public virtual override returns (bytes4) {
        return this.onERC1155Received.selector;
    }

    function onERC1155BatchReceived(address, address, uint256[] memory, uint256[] memory, bytes memory) public virtual override returns (bytes4) {
        return this.onERC1155BatchReceived.selector;
    }

    uint256[50] private __gap;
}
