$template
$template : string
format(\Psr\Http\Message\RequestInterface $request, \Psr\Http\Message\ResponseInterface $response = null, \Exception $error = null) : string
Returns a formatted message string.
| \Psr\Http\Message\RequestInterface | $request | Request that was sent |
| \Psr\Http\Message\ResponseInterface | $response | Response that was received |
| \Exception | $error | Exception that was received |