Group
constructor(groupID: String, groupName: String? = null, avatarURL: String? = null, groupType: GroupType? = null, notice: String? = null, joinOption: GroupJoinOption? = null, inviteOption: GroupJoinOption? = null, memberCount: Int? = null, isAllMuted: Boolean? = null, groupOwner: String? = null, selfRole: GroupMemberRole? = null, receiveMessageOpt: ReceiveMessageOpt? = null, groupAttributes: Map<String, String>? = null)