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contracts...Only_view.sol

// SPDX-License-Identifier: MIT
pragma solidity 0.8.15;

contract TheBlockchainMessenger{
    
    uint public  changeCounter;
    address public  owner = msg.sender;    
    string public  theMessage;
    
    // constructor(){
    //     owner = msg.sender;
    // }   
    function updateTheMessage(string memory _newMessage) public {
        if (msg.sender == owner){
            theMessage = _newMessage;
            changeCounter++;
        }
    }
}