protected function getClient(): HttpClient
    {
        if ($this->client === null) {
            $this->client = new HttpClient($this->getClientConfig());
        }

        return $this->client;
    }
protected function getClient(): HttpClient
    {
        if ($this->client === null) {
            $this->client = new HttpClient($this->getClientConfig());
        }

        return $this->client;
    }
protected function getClient ( ) : HttpClient { if ( $ this -> client === null ) { $ this -> client = new HttpClient ( $ this -> getClientConfig ( ) ) ; } return $ this -> client ; }
Returns the Guzzle client

@return HttpClient
Returns the Guzzle client