PublicGroupChannelListQuery constructor Null safety

1. sendbird_sdk
2. public_group_channel_list_query
3. PublicGroupChannelListQuery
4. PublicGroupChannelListQuery constructor

PublicGroupChannelListQuery class

1. Constructors
2. PublicGroupChannelListQuery
3. Properties
4. channelNameContainsFilter
5. channelUrls
6. customTypesFilter
7. customTypeStartWithFilter
8. hashCode
9. hasNext
10. includeEmptyChannel
11. includeFrozenChannel
12. includeMemberList
13. includeMetaData
14. limit
15. loading
16. membershipFilter
17. metaDataKeyFilter
18. metaDataOrderKeyFilter
19. metaDataValuesFilter
20. metaDataValueStartWithFilter
21. order
22. runtimeType
23. superChannelFilter
24. token
25. Methods
26. loadNext
27. noSuchMethod
28. setMetaDataFilterWithStartWith
29. setMetaDataFilterWithValues
30. toJson
31. toString
32. Operators
33. operator ==