'Returns the status of the specified operation. After calling an
asynchronous operation, you can call Get Operation Status to determine
whether the operation has succeeded, failed, or is still in progress.
request_id:
The request ID for the request you wish to track.'

def get_operation_status(self, request_id):

    _validate_not_none('request_id', request_id)
    return self._perform_get(((('/' + self.subscription_id) + '/operations/') + _str(request_id)), Operation)
