code: def set_output_keys(datasets, output_keys):
      """Helper for setting the same item to multiple datasets."""
      for dataset in datasets:
          dataset.set_output_keys(output_keys)
  
imports: import copy
  import contextlib
  from types import MethodType
  from torch.utils.data import Dataset
  from speechbrain.utils.data_pipeline import DataPipeline
  from speechbrain.dataio.dataio import load_data_json, load_data_csv
  from speechbrain.utils.data_utils import batch_shuffle
  import logging
  import math
label_desc: Use image node_id 2 for calling a global function with example usage: set_output_keys(datasets, output_keys) without return types