code: def data_generator_id(params: List):
      """
      Formatter to display data dimensions in test name.
  
      Parameters
      ----------
      params
          Iterable with values for `n_instances` and `n_features`.
      """
      fmt = "n_instances={}, n_features={}"
      return fmt.format(*params)
  
imports: import inspect
  import os
  import pytest
  import time
  from itertools import product
  from typing import Any, Dict, List, Optional, Tuple, Union
  import numpy
  from alibi.utils.distributed import DistributedExplainer, PoolCollection, ResourceError, invert_permutation, concatenate_minibatches
label_desc: Use image node_id 4 for calling a global function with example usage: data_generator_id(params) and returns: fmt