code: function fromChatID(steamID) {
  	steamID = Helpers.steamID(steamID);
  
  	if (steamID.isGroupChat()) {
  		steamID.type = SteamID.Type.CLAN;
  		steamID.instance &= ~SteamID.ChatInstanceFlags.Clan;
  	}
  
  	return steamID;
  }
docs: If steamID is a clan chat ID, converts to the appropriate clan ID. Otherwise, returns it untouched.
  @param {SteamID} steamID
  @returns SteamID