<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def path(self):
 """Getter property for the URL path to this Blob. :rtype: str :returns: The URL path to this Blob. """

        if not self.name:
            raise ValueError("Cannot determine path without a blob name.")

        return self.path_helper(self.bucket.path, self.name)