code: def test_docs(generator_class):
      assert "exponential" in generator_class().exponential.__doc__
      assert "exponential" in generator_class().exponential.__name__
      assert "# doctest: +SKIP" in generator_class().normal.__doc__
  
imports: from __future__ import annotations
  import pytest
  import numpy
  import dask
  import dask.array
  from dask.array.core import Array
  from dask.array.utils import assert_eq
  from dask.multiprocessing import _dumps, _loads
  from dask.utils import key_split
label_desc: Use image node_id 14 for calling a global function with example usage: test_docs(generator_class) without return types