Group profile photo.
chatPhoto#1c6e1c11 flags:# has_video:flags.0?true photo_id:long stripped_thumb:flags.1?bytes dc_id:int = ChatPhoto;| Name | Type | Description | 
|---|---|---|
| flags | # | Flags, see TL conditional fields | 
| has_video | flags.0?true | Whether the user has an animated profile picture | 
| photo_id | long | Photo ID | 
| stripped_thumb | flags.1?bytes | Stripped thumbnail | 
| dc_id | int | DC where this photo is stored | 
How to transfer large data batches correctly.