Chat ID or username
Optional
icon?: number | LongIcon of the topic.
Can be a number (color in RGB, see ForumTopic static members for allowed values) or a custom emoji ID.
Icon color can't be changed after the topic is created.
Optional
sendSend as a specific channel
Optional
shouldWhether to dispatch the returned service message (if any) to the client's update handler.
Topic title
Service message for the created topic
Create a topic in a forum
Only admins with
manageTopics
permission can do this.