GroupChannelTotalUnreadMessageCountParams constructor Null safety

1. sendbird_sdk
2. group_channel_total_unread_message_count_params
3. GroupChannelTotalUnreadMessageCountParams
4. GroupChannelTotalUnreadMessageCountParams constructor

GroupChannelTotalUnreadMessageCountParams class

1. Constructors
2. GroupChannelTotalUnreadMessageCountParams
3. Properties
4. customTypes
5. hashCode
6. runtimeType
7. superChannelFilter
8. Methods
9. noSuchMethod
10. toString
11. Operators
12. operator ==