public function selectCollection($collectionName, array $options = []) { $options += ['readConcern' => $this->readConcern, 'readPreference' => $this->readPreference, 'typeMap' => $this->typeMap, 'writeConcern' => $this->writeConcern]; return new Collection($this->manager, $this->databaseName, $collectionName, $options); }