Joins an active video chat. Returns join response payload for tgcalls
| group_call_id |
Group call identifier |
| participant_id |
Identifier of a group call participant, which will be used to join the call; pass null to join as self; video chats only |
| join_parameters |
Parameters to join the call |
| invite_hash |
Invite hash as received from internalLinkTypeVideoChat |