protected IServiceCallState<PagedResult<ScalarResult>> SetSessionDeletingState(IServiceCallState<PagedResult<ScalarResult>> state)
		{
			state.OperationCompleted += DeleteCompleted;
			return state;
		}
		protected IServiceCallState<PagedResult<Session>> SetSessionUpdatingState(IServiceCallState<PagedResult<Session>> state)
		{
			state.OperationCompleted += UpdateCompleted;
			return state;
		}