code: def __getitem__(self, hyperparams):
      params_hash = self._hash(hyperparams)
  
      with open(self._filename, "r+") as fle:
          for line in fle:
              datum = json.loads(line)
  
              if datum["hash"] == params_hash:
                  del datum["hash"]
                  return datum
  
      raise KeyError
  
imports: import hashlib
  import json
  import os
  import shutil
  import sys
  import numpy
  from sklearn.model_selection import ParameterSampler
  from spotlight.datasets.movielens import get_movielens_dataset
  from spotlight.cross_validation import user_based_train_test_split
  from spotlight.sequence.implicit import ImplicitSequenceModel
  from spotlight.sequence.representations import CNNNet
  from spotlight.evaluation import sequence_mrr_score
label_desc: Use image node_id 5 for calling the Results obj's underlying member method code with example usage: obj.__getitem__(hyperparams) and returns: datum