'Looks up all clients associated with any of the given keywords.
Args:
keywords: A list of keywords we are interested in.
Returns:
A dict mapping each keyword to a list of matching clients.'

def ReadClientPostingLists(self, keywords):

    (start_time, end_time, filtered_keywords, _) = self._AnalyzeKeywords(keywords)
    return self.ReadPostingLists(filtered_keywords, start_time=start_time.AsMicroSecondsFromEpoch(), end_time=end_time.AsMicroSecondsFromEpoch())
