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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 path(self):
 """Getter property for the URL path to this Task. :rtype: string :returns: The URL path to this task. """

        if not self.id:
            raise ValueError('Cannot determine path without a task id.')

        return self.path_helper(self.taskqueue.path, self.id)