code: def get_field_values(self, name, maxvalues=-1, sort=True, **query_dict):
          param_dict = query_dict.copy()
          param_dict.update(
              {
                  'rows': '0',
                  'facet': 'true',
                  'facet.field': name,
                  'facet.limit': str(maxvalues),
                  'facet.zeros': 'false',
                  'facet.sort': str(sort).lower(),
              }
          )
          resp_dict = self._post_query(**param_dict)
          result_dict = resp_dict['facet_counts']['facet_fields']
          result_dict['numFound'] = resp_dict['response']['numFound']
          return result_dict