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test.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface ITransparentForwarder {
    /**
     * @dev using the hash of collection name, clients can query the result of that collection
     * @param _name bytes32 hash of the collection name
     * @return result of the collection and its power
     */
    function getResult(bytes32 _name) external payable  returns (uint256, int8);
}

contract DataFeed {
    ITransparentForwarder public transparentForwarder;
    uint256 public latestResult;
    int8 public latestPower;

    constructor() {
        transparentForwarder = ITransparentForwarder(
           0x53Df936a3594777185DF12Cd073d9033cfF348D6
        );
    }

    function getResult(bytes32 name) public payable  returns (uint256, int8) {
        (uint256 result, int8 power) = transparentForwarder.getResult{value: msg.value}(name);
        latestResult = result;
        latestPower = power;
        return (result, power);
    }
}