The media's type, represented by a value from the following list: - 'audio' - 'video' - 'text' - 'image' - Empty string ('') when the media type is unknown
'audio'
'video'
'text'
'image'
''
The media's type, represented by a value from the following list:
-
'audio'
-
'video'
-
'text'
-
'image'
- Empty string (
''
) when the media type is unknown