code: def get(self, cluster, environ, topology):
      '''
      :param cluster:
      :param environ:
      :param topology:
      :return:
      '''
      # pylint: disable=no-member
      options = dict(
          cluster=cluster,
          environ=environ,
          topology=topology,
          active="topologies",
          function=common.className,
          baseUrl=self.baseUrl)
      self.render("config.html", **optionsf get(self, cluster, environ, topology):
      '''
      :param cluster:
      :param environ:
      :param topology:
      :return:
      '''
      # pylint: disable=no-member
      options = dict(
          cluster=cluster,
          environ=environ,
          topology=topology,
          active="topologies",
          function=common.className,
          baseUrl=self.baseUrl)
      self.render("config.html", **options)
docs: :param cluster:
      :param environ:
      :param topology:
      :return: