Identifier of the chat that posted the stories.
Identifier of the story list in which the stories are shown; may be null if the stories aren't shown in a story list.
Identifier of the last read active story.
A parameter used to determine order of the stories in the story list; 0 if the stories doesn't need to be shown in the story list. Stories must be sorted by the pair (order, story_sender_chat_id) in descending order.
Basic information about the stories; use getStory to get full information about the stories. The stories are in chronological order (i.e., in order of increasing story identifiers).
Describes active stories posted by a chat.