code: def test_nonparametric(
      self,
      phi,
      get,
  ):
      self._test_activation_fc(phi(), get)
  
imports: import itertools
  import random
  from absl.testing import absltest
  from jax import config
  from jax import default_backend
  from jax import grad, jacfwd, jacrev, jit, jvp, value_and_grad
  from jax import random
  import jax.numpy
  import neural_tangents
  from neural_tangents import stax
  from neural_tangents._src.empirical import _DEFAULT_TESTING_NTK_IMPLEMENTATION
  from tests import test_utils
label_desc: Use image node_id 2 for calling the ActivationTest obj's underlying member method code with example usage: obj.test_nonparametric(phi, get) without return types