code: def test_arcoating_recombination() -> None:
      func = core.ARCoating(nbslab=6)
      func.parametrization.random_state.seed(24)
      arrays: tp.List[ng.p.Array] = []
      for num in [3, 5]:
          arrays.append(func.parametrization.spawn_child())  # type: ignore
          arrays[-1].value = num * np.ones(arrays[0].value.shape)
      arrays[0].recombine(arrays[1])
      expected = [3.0, 3.0, 3.0, 5.0, 3.0, 3.0]
      np.testing.assert_array_equal(arrays[0].value, expected)
  
file_path: nevergrad/nevergrad/functions/arcoating/test_core.py
imports: import typing
  import numpy
  import nevergrad
  from .None import core
label_desc: Use image node_id 3 for calling a global function with example usage: test_arcoating_recombination() without return types