discussionChatId property
discussionChatId Identifier of a new channel's discussion group. Use 0 to remove the discussion group. Use the method getSuitableDiscussionChats to find all suitable groups.. Basic group chats must be first upgraded to supergroup chats. If new chat members don't have access to old messages in the supergroup, then toggleSupergroupIsAllHistoryAvailable must be used first to change that
Implementation
final int discussionChatId;