code: def build_ensembler_from_args(cls, args):
      """Build a new ensembler instance."""
      raise NotImplementedError(
          "Ensembler must implement the build_ensembler_from_args method"
      )
  
label_desc: Use image node_id 4 for calling the BaseEnsembler obj's underlying member method code with example usage: obj.build_ensembler_from_args(cls, args) without return types