public function getMultiple( $keys, $default = null )
	{
		$result = [];

		foreach( $keys as $key )
		{
			if( ( $entry = $this->object->get( $key ) ) !== false ) {
				$result[$key] = $entry;
			} else {
				$result[$key] = $default;
			}
		}

		return $result;
	}