class_docstr: Base results class.
class_docstr_tok: ["Base","results","class","."]
docstr: Append names of datasets, strategies to results objects.
docstr_tok: ["Append","names","of","datasets",",","strategies","to","results","objects","."]
code: def _append_key(self, strategy_name, dataset_name):
      """Append names of datasets, strategies to results objects."""
      if strategy_name not in self.strategy_names:
          self.strategy_names.append(strategy_name)
  
      if dataset_name not in self.dataset_names:
          self.dataset_names.append(dataset_name)
  
imports: import os
  from abc import ABC, abstractmethod
  from warnings import warn
  import numpy
  from joblib import dump, load
label_desc: Use image node_id 8 for calling the BaseResults obj's underlying member method code with example usage: obj._append_key(strategy_name, dataset_name) without return types