responses library Null safety

Classes

BaseResponse
ChannelChangeLogsResponse
ChannelConverter<T>
ChannelListQueryResponse<T extends BaseChannel>
ChannelMessageResponse
DoNotDisturbResponse
MessageChangeLogsResponse
MessageSearchQueryResponse
MetaCounterResponse
MetaDataResponse
MuteInfoResponse
OperatorListQueryResponse
PollChangeLogsResponse
PollListQueryResponse
PollVoterListQueryResponse
ScheduledMessageResponse
Serializable
SnoozeResponse
ThreadedMessageResponse
UploadResponse
UserConverter<T>
UserListQueryResponse<T extends User>