code: def reload(self, core):  # NOQA: A003
          
          params = {
              'action': 'RELOAD',
              'core': core,
          }
          return self._get_url(self.url, params=params)
docs: http://wiki.apache.org/solr/CoreAdmin#head-3f125034c6a64611779442539812067b8b430930