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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 ResolvePrefix(self, subject, attribute_prefix, timestamp=None, limit=None):
 """Retrieve a set of value matching for this subject's attribute. Args: subject: The subject that we will search. attribute_prefix: The attribute prefix. timestamp: A range of times for consideration (In microseconds). Can be a constant such as ALL_TIMESTAMPS or NEWEST_TIMESTAMP or a tuple of ints (start, end). limit: The number of results to fetch. Returns: A list of (attribute, value string, timestamp). Values with the same attribute (happens when timestamp is not NEWEST_TIMESTAMP, but ALL_TIMESTAMPS or time range) are guaranteed to be ordered in the decreasing timestamp order. Raises: AccessError: if anything goes wrong. """

    for _, values in self.MultiResolvePrefix([subject],
                                             attribute_prefix,
                                             timestamp=timestamp,
                                             limit=limit):
      values.sort(key=lambda a: a[0])
      return values

    return []