code: def test_function_transform() -> None:
      func = functionlib.ArtificialFunction(
          "sphere", 2, num_blocks=1, noise_level=0.1
      )
      output = func._transform(np.array([0.0, 0]))
      np.testing.assert_equal(output.shape, (1, 2))
      np.testing.assert_equal(len(output), 1)
  
imports: import typing
  import numpy
  import pytest
  from nevergrad.common import testing
  from nevergrad.parametrization import parameter
  from .None import functionlib
label_desc: Use image node_id 8 for calling a global function with example usage: test_function_transform() without return types