Twilio Chat Client Hierarchy Class Hierarchy NSError TCHError NSObject TCHChannel TCHChannelDescriptor TCHChannelDescriptorPaginator TCHChannelPaginator TCHChannels TCHMember TCHMemberPaginator TCHMembers TCHMessage TCHMessages TCHResult TCHUserInfo TwilioChatClient TwilioChatClientProperties Protocol References TCHChannelDelegate TwilioChatClientDelegate Constant References TCHChannelStatus TCHChannelSynchronizationStatus TCHChannelType TCHClientConnectionState TCHClientSynchronizationStatus TCHClientSynchronizationStrategy TCHLogLevel TCHUserInfoUpdate