code: def save_my_plans(self):
      with open(self.plans_fname, "wb") as f:
          pickle.dump(self.plans, f)
  
imports: import os
  import pickle
  import shutil
  from collections import OrderedDict
  from .image_crop import get_case_identifier_from_npz
  from .preprocessing import GenericPreprocessor, PreprocessorFor2D
  from .experiment_utils import *
  from .path_utils import join_paths
label_desc: Use image node_id 3 for calling the ExperimentPlanner obj's underlying member method code with example usage: obj.save_my_plans() without return types