The user ID who added someone (if applicable).
True if this is a new chat/channel creation.
The user ID who kicked someone (if applicable).
True if the chat photo was changed.
True if a message was pinned.
The new chat title (if changed).
True if the chat photo was deleted.
The first pinned message ID.
The IDs of pinned/unpinned messages.
True if a message was unpinned.
True if a user was added by someone else.
The first user ID (convenience getter).
The user IDs affected by this action.
True if a user joined the chat.
True if a user was kicked/banned.
True if a user left the chat.
OptionalactionMessage: MessageServiceStaticinitGet the first pinned message.
Get the pinned message(s).
Get the first affected user.
Get the user(s) affected by this action.
Optional_Optional_Optional_Optional_Optional_Optional_
The service message that triggered this event (if any).