code: def _iterate(self, url, **queryparams):
          
          # fields as a query string parameter should be a string with
          # comma-separated substring values to pass along to
          # self._mc_client._get(). It should also contain total_items whenever
          # the parameter is employed, which is forced here.
          if 'fields' in queryparams:
              if 'total_items' not in queryparams['fields'].split(','):
                  queryparams['fields'] += ',total_items'
          # Remove offset and count if provided in queryparams
          # to avoid 'multiple values for keyword argument' TypeError
          queryparams.pop("offset", None)
          queryparams.pop("count", None)
          # Fetch results from mailchimp, up to first 1000
          result = self._mc_client._get(url=url, offset=0, count=1000, **queryparams)
          total = result['total_items']
          # Fetch further results if necessary
          if total > 1000:
              for offset in range(1, int(total / 1000) + 1):
                  result = merge_results(result, self._mc_client._get(
                      url=url,
                      offset=int(offset * 1000),
                      count=1000,
                      **queryparams
                  ))
              return result
          else:  # Further results not necessary
              return result
docs: Iterate over all pages for the given url. Feed in the result of self._build_path as the url.
  
          :param url: The url of the endpoint
          :type url: :py:class:`str`
          :param queryparams: The query string parameters
          queryparams['fields'] = []
          queryparams['exclude_fields'] = []
          queryparams['count'] = integer
          queryparams['offset'] = integer