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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def store_result(self, task_id, result, status, traceback=None, children=None):
 """Store the result and status of a task. :param task_id: task id :param result: The return value of the task, or an exception instance raised by the task. :param status: Task status. See :meth:`celery.result.AsyncResult.get_status` for a list of possible status values. :keyword traceback: The traceback at the point of exception (if the task failed). :keyword children: List of serialized results of subtasks of this task. :keyword exception_retry_count: How many times to retry by transaction rollback on exception. This could theoretically happen in a race condition if another worker is trying to create the same task. The default is to retry twice. """

        return self.update_or_create(task_id=task_id,
                                     defaults={'status': status,
                                               'result': result,
                                               'traceback': traceback,
                                               'meta': {'children': children}})