View Source ExTDLib.Method.CreateNewBasicGroupChat (ExTDLib v0.0.4)

Creates a new basic group and sends a corresponding messageBasicGroupChatCreate. Returns the newly created chat. Returns object_ptr<Chat>.

NameTypeDescription
user_idsstringIdentifiers of users to be added to the basic group; may be empty to create a basic group without other members.
titlestringTitle of the new basic group; 1-128 characters.
message_auto_delete_timenumberMessage auto-delete time value, in seconds; must be from 0 up to 365 * 86400 and be divisible by 86400. If 0, then messages aren't deleted automatically.

More details on telegram's documentation.