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):
    """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.
    """

    start_time, filtered_keywords = self._AnalyzeKeywords(keywords)

    return data_store.REL_DB.ListClientsForKeywords(
        filtered_keywords, start_time=start_time)