Whether the API has currently stored a Session ID.
The current Session ID for the API.
Clears the document cache.
Closes the client. This should be called when the API is no longer needed.
Logs in to Tabroom with the given username and password.
Login to Tabroom using the given username and password.
Logs out of Tabroom, invalidating the stored token. If there is no token, this function does nothing.