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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 Resolve(self, subject, attribute):
 """Retrieve a value set for a subject's attribute. This method is easy to use but always gets the latest version of the attribute. It is more flexible and efficient to use the other Resolve methods. Args: subject: The subject URN. attribute: The attribute. Returns: A (value, timestamp in microseconds) stored in the datastore cell, or (None, 0). Value will be the same type as originally stored with Set(). Raises: AccessError: if anything goes wrong. """

    for _, value, timestamp in self.ResolveMulti(
        subject, [attribute], timestamp=self.NEWEST_TIMESTAMP):

      # Just return the first one.
      return value, timestamp

    return (None, 0)