/** {@inheritdoc} */
public function getIterator()
{
/** @var \Iterator $iterator */
$iterator = null;
do {
$this->stopwatch->start($this->client, 'rpc_response');
if (null === $iterator) {
if ($this->collection instanceof \IteratorAggregate) {
$iterator = $this->collection->getIterator();
} elseif ($this->collection instanceof \Iterator) {
$iterator = $this->collection;
}
$iterator->rewind();
}
$value = $iterator->current();
$this->stopwatch->start($this->client, 'rpc_response');
$iterator->next();
(yield $value);
} while ($iterator->valid());
}
