src/Api/AbstractApi.php
protected function get($path, array $parameters = array(), $requestHeaders = array())
    {
        if (array_key_exists('ref', $parameters) && is_null($parameters['ref'])) {
            unset($parameters['ref']);
        }
        $response = $this->client->getHttpClient()->get($path, $parameters, $requestHeaders);

        return ResponseMediator::getContent($response);
    }
protected function get($path, array $parameters = array(), $requestHeaders = array())
    {
        if (array_key_exists('ref', $parameters) && is_null($parameters['ref'])) {
            unset($parameters['ref']);
        }
        $response = $this->client->getHttpClient()->get($path, $parameters, $requestHeaders);

        return ResponseMediator::getContent($response);
    }
Send a GET request with query parameters.

@param string $path           Request path.
@param array  $parameters     GET parameters.
@param array  $requestHeaders Request Headers.

@return \Guzzle\Http\EntityBodyInterface|mixed|string