staking-reward-streamer/src/TransparentProxy.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.26;

import { ERC1967Proxy } from "@openzeppelin/contracts/proxy/ERC1967/ERC1967Proxy.sol";

contract TransparentProxy is ERC1967Proxy {
    constructor(address _implementation, bytes memory _data) ERC1967Proxy(_implementation, _data) { }

    function implementation() external view returns (address) {
        return _implementation();
    }
}