thread_state library Null safety

Classes

DeleteThreadSuccess
InitialThreadState
MarkNodisturbThreadSuccess
MarkTopThreadSuccess
MarkUnreadThreadSuccess
RequestAgentSuccess
RequestContactThreadSuccess
RequestGroupThreadSuccess
RequestThreadSuccess
ThreadEmpty
ThreadHistoryLoading
ThreadLoadError
ThreadLoading
ThreadLoadSuccess
ThreadState
ThreadUninitialized
ThreadVisitorLoading
UnMarkNodisturbThreadSuccess
UnMarkTopThreadSuccess
UnMarkUnreadThreadSuccess