Chat ID or username
Optionalclosed?: booleanWhether to (un)close the topic
Optionalhidden?: booleanWhether to (un)hide the topic
Optionalicon?: null | LongNew icon of the topic.
Can be a custom emoji ID, or null to remove the icon
and use static color instead
OptionalshouldDispatch?: trueWhether to dispatch the returned service message (if any) to the client's update handler.
Optionaltitle?: stringNew topic title
ID of the topic (i.e. its top message ID)
Service message about the modification
Modify a topic in a forum
Only admins with
manageTopicspermission can do this.