lib/promise-adapter/src/Adapter/GuzzleHttpPromiseAdapter.php
public function create(&$resolve = null, &$reject = null, callable $canceller = null)
    {
        $queue = \GuzzleHttp\Promise\queue();
        $promise = new Promise([$queue, 'run'], $canceller);

        $reject = [$promise, 'reject'];
        $resolve = [$promise, 'resolve'];

        return $promise;
    }
public function create(&$resolve = null, &$reject = null, callable $canceller = null)
    {
        $queue = \GuzzleHttp\Promise\queue();
        $promise = new Promise([$queue, 'run'], $canceller);

        $reject = [$promise, 'reject'];
        $resolve = [$promise, 'resolve'];

        return $promise;
    }
{@inheritdoc}

@return Promise