Twilio Chat Client Reference Class References TCHChannel TCHChannelDescriptor TCHChannelDescriptorPaginator TCHChannels TCHError TCHMember TCHMemberPaginator TCHMembers TCHMessage TCHMessageOptions TCHMessages TCHResult TCHUser TCHUserDescriptor TCHUserDescriptorPaginator TCHUsers TwilioChatClient TwilioChatClientProperties Protocol References TCHChannelDelegate TwilioChatClientDelegate Constant References TCHChannelNotificationLevel TCHChannelSortingCriteria TCHChannelSortingOrder TCHChannelStatus TCHChannelSynchronizationStatus TCHChannelType TCHChannelUpdate TCHClientConnectionState TCHClientSynchronizationStatus TCHLogLevel TCHMemberUpdate TCHMessageType TCHMessageUpdate TCHUserUpdate