code: def register_queries():
      
      return [
          dict(
              query_name='bucket-file-download-histogram',
              query_class=ESDateHistogramQuery,
              query_config=dict(
                  index='stats-file-download',
                  doc_type='file-download-day-aggregation',
                  copy_fields=dict(
                      bucket_id='bucket_id',
                      file_key='file_key',
                  ),
                  required_filters=dict(
                      bucket_id='bucket_id',
                      file_key='file_key',
                  )
              )
          ),
          dict(
              query_name='bucket-file-download-total',
              query_class=ESTermsQuery,
              query_config=dict(
                  index='stats-file-download',
                  doc_type='file-download-day-aggregation',
                  copy_fields=dict(
                      # bucket_id='bucket_id',
                  ),
                  required_filters=dict(
                      bucket_id='bucket_id',
                  ),
                  aggregated_fields=['file_key']
              )
          ),
      ]
docs: Register queries.