Use this method to set a custom title for an administrator in a supergroup promoted by the bot. Returns True on success.
chat_id
Integer or String
Yes
Unique identifier for the target chat or username of the target supergroup (in the format @supergroupusername)
@supergroupusername
user_id
Integer
Unique identifier of the target user
custom_title
String
New custom title for the administrator; 0-16 characters, emoji are not allowed
