code: def get_file_clusters(self, date):
          
          api_name = 'virustotal-file-clusters'
  
          (all_responses, resources) = self._bulk_cache_lookup(api_name, date)
          response = self._request_reports("date", date, 'file/clusters')
          self._extract_response_chunks(all_responses, response, api_name)
  
          return all_responses
docs: Retrieves file similarity clusters for a given time frame.
  
          Args:
              date: the specific date for which we want the clustering details.
              Example: 'date': '2013-09-10'
          Returns:
              A dict with the VT report.