code: def to_rest(self, step_name):
      args = [
          step_name,
          "H2OColSelect",
          ("(cols_py dummy %r)" % self.cols),
          False,
          "|",
      ]
      return super(H2OColSelect, self).to_rest(args)
  
imports: import warnings
  from .transform_base import H2OTransformer
label_desc: Use image node_id 4 for calling the H2OColSelect obj's underlying member method code with example usage: obj.to_rest(step_name) and returns: super