position property
Type of position, for a media or enrichment item. Possible string values are:
- "POSITION_TYPE_UNSPECIFIED" : Default value if this enum isn't set.
 - "FIRST_IN_ALBUM" : At the beginning of the album.
 - "LAST_IN_ALBUM" : At the end of the album.
 - "AFTER_MEDIA_ITEM" : After a media item.
 - "AFTER_ENRICHMENT_ITEM" : After an enrichment item.
 
Implementation
core.String? position;