Should the index should be unique.
Sets the name of the index.
Should the index should be created in the background
Sets the time to live for documents in the collection
Should the index only references documents with the specified field
Sets the filter expression for the documents to be included in the index
Sets the language for the text index.The language that determines the list of
stop words and the rul
Sets the name of the field that contains the language string.For text indexes,
the name of the field
Sets the weighting object for use with a text index.An document that represents
field and weight pai
Sets the number of precision of the stored geohash value of the location data in
Gets the name of the index.