Tokyo Cabinet based task backend store.
- 
tyrant_host
- The hostname to the Tokyo Tyrant server.
- 
tyrant_port
- The port to the Tokyo Tyrant server.
- 
get_result(task_id)
- Get the result of a task.
- 
get_server()
- Get pytyrant.PyTyrant` instance with the current
server configuration.
- 
get_status(task_id)
- Get the status for a task.
- 
is_done(task_id)
- Returns True if the task executed successfully.
- 
store_result(task_id, result, status)
- Store task result and status.