public function error($errorCode = null, string $message = null)
    {
        $this->errorCode = $errorCode;
        $this->message = $message;

        return $this;
    }
public function error($errorCode = null, string $message = null)
    {
        $this->errorCode = $errorCode;
        $this->message = $message;

        return $this;
    }
public function error ( $ errorCode = null , string $ message = null ) { $ this -> errorCode = $ errorCode ; $ this -> message = $ message ; return $ this ; }
Set the error code and message.

@param  mixed|null  $errorCode
@param  string|null $message
@return $this
Set the error code and message .