code: def list_dfs_services(self, view=None):
      
      if view:
        return self._get_resource_root().get("%s/%s?view=%s" % (self._path(), 'dfsServices', view))
      else:
        return self._get_resource_root().get("%s/%s" % (self._path(), 'dfsServices'))
docs: List available DFS (distributed file system) services in a cluster.
      @param view: View to materialize
      @return: List of available distributed file system services in the cluster.
      @since: API v12