private function getErrorMessage()
    {
        $message = $this->target->resource->timeoutMessage;

        return sprintf(
            $message,
            $this->url,
            $this->totalTime,
            $this->getRoundtripTimeout()
        );
    }
private function getErrorMessage()
    {
        $message = $this->target->resource->timeoutMessage;

        return sprintf(
            $message,
            $this->url,
            $this->totalTime,
            $this->getRoundtripTimeout()
        );
    }
private function getErrorMessage ( ) { $ message = $ this -> target -> resource -> timeoutMessage ; return sprintf ( $ message , $ this -> url , $ this -> totalTime , $ this -> getRoundtripTimeout ( ) ) ; }
Get the error message.

@return string
Get the error message .