message_state library Null safety

Classes

InitialMessageState
LoadChannelMessageError
LoadChannelMessageSuccess
LoadHistoryMessageError
LoadHistoryMessageSuccess
LoadTopicMessageError
LoadTopicMessageSuccess
MessageAnswerSuccess
MessageLoading
MessageState
MessageUpLoading
QueryAnswerSuccess
RateAnswerSuccess
ReceiveMessageState
RestMessageSending
SendMessageRestError
SendMessageRestSuccess
UpLoadImageError
UploadImageSuccess
UpLoadVideoError
UploadVideoSuccess