Gets the current sync state
Gets whether we're online
Gets the send queue
Gets a conversation if it exists
Address of the participant
Gets all conversations
Gets or creates a conversation
Address of the participant
Sets a single event callback
Processes all queued messages
Queues a message for sending
Message will be sent when online.
Message options
Sets online/offline state
Whether we're online
Starts background synchronization
Stops background synchronization
Performs a full sync
Syncs a specific conversation
Address of the participant
Sync Manager
Coordinates background synchronization: