/**
* List databases.
*
* @see ListDatabases::__construct() for supported options
* @return DatabaseInfoIterator
*/
public function listDatabases(array $options = [])
{
$operation = new ListDatabases($options);
$server = $this->manager->selectServer(new ReadPreference(ReadPreference::RP_PRIMARY));
return $operation->execute($server);
}
