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| // SPDX-License-Identifier: MIT | |
| pragma solidity ^0.8.7; | |
| import "@openzeppelin/contracts/token/ERC1155/IERC1155.sol"; | |
| import "@openzeppelin/contracts/token/ERC1155/utils/ERC1155Receiver.sol"; | |
| contract NftStaker { | |
| IERC1155 public parentNFT; | |
| struct Stake { |