Get which users read a specific message: only available for groups and supergroups with less than
chat_read_mark_size_threshold members, read receipts will be stored for
chat_read_mark_expire_period seconds after the message was sent, see client configuration for more info ».
messages.getMessageReadParticipants#31c1c44f peer:InputPeer msg_id:int = Vector<ReadParticipantDate>;
|This method is not available for groups with more than
chat_read_mark_size_threshold members, see client configuration ».
|Invalid message ID provided.
chat_read_mark_expire_period seconds have passed since the message was sent, read receipts were deleted.
|The provided peer id is invalid.
The MTProto API has multiple configuration parameters that can be fetched with the appropriate methods.