<?php namespace GuzzleHttp\Exception; use Throwable; if (interface_exists(Throwable::class)) { interface GuzzleException extends Throwable { } } else { /** * @method string getMessage() * @method \Throwable|null getPrevious() * @method mixed getCode() * @method string getFile() * @method int getLine() * @method array getTrace() * @method string getTraceAsString() */ interface GuzzleException { } }