code: def save(self, path):
      del self.domain
      super(HyperoptProposer, self).save(path)
  
file_path: auptimizer/src/aup/Proposer/HyperoptProposer.py
imports: import importlib
  import logging
  import numpy
  from six.moves import input
  from .AbstractProposer import AbstractProposer
  from .hyperopt import hp, base
  from .hyperopt.utils import coarse_utcnow
  from ..utils import set_default_keyvalue, check_missing_key, get_from_options
label_desc: Use image node_id 5 for calling the HyperoptProposer obj's underlying member method code with example usage: obj.save(path) without return types