public enum SessionState : int {
  UNKNOWN = -1,
  CREATED = 0,
  QUEUED = 1,
  INITIALIZING = 2,
  READY = 3,
  RUNNING = 4,
  CLOSING = 5,
  FINISHED = 6,
  INTERRUPTED = 7,
  ERROR = 8,
  DELETED = 9,
  TERMINATION_REQUESTED = 10
}