Encoding.sol

pragma solidity ^0.4.23;

contract Test {
    bytes public result;
    
    function saveArgs(uint arg1,bool arg2, string arg3, address arg4) public returns(bytes4){
        return this.saveArgs.selector;
    }
    
    function encodeMe(bytes4 selector, uint arg1,bool arg2, string arg3, address arg4) returns(bytes){
        result = abi.encodeWithSelector(selector,arg1,arg2,arg3,arg4);
        return result;
    }
}