class_docstr: HDD results.
docstr: Load saved (fitted) strategy.
docstr_tok: ["Load","saved","(","fitted",")","strategy","."]
code: def load_fitted_strategy(self, strategy_name, dataset_name, cv_fold):
      """Load saved (fitted) strategy."""
      for strategy_name, dataset_name in self._iter():
          key = (
              self._generate_key(
                  strategy_name,
                  dataset_name,
                  cv_fold,
                  train_or_test="train",
              )
              + ".pickle"
          )
          # TODO if we use strategy specific saving function, how do we
          #  remember how to load them? check file endings?
          return load(key)
  
imports: import os
  import numpy
  import pandas
  from joblib import load
  from sktime.benchmarking.base import BaseResults, HDDBaseResults, _PredictionsWrapper
label_desc: Use image node_id 4 for calling the HDDResults obj's underlying member method code with example usage: obj.load_fitted_strategy(strategy_name, dataset_name, cv_fold) and returns: load