lithium\data\source\MongoDb::fields PHP Method

MongoDB does nt require field identifer escaping; as a result, this method is not implemented.

public fields ( array $fields, object $context ) : array
$fields	array	Fields to be parsed
$context	object
return	array	Parsed fields array

    public function fields($fields, $context)
    {
        return $fields ?: array();
    }

MongoDb