code: def test_given_constant_inputs_when_perform_kernel_based_test_then_returns_non_nan_value():
      assert (
          kernel_based(
              np.random.normal(0, 1, (1000, 2)), np.array([5] * 1000)
          )
          != np.nan
      )
  
imports: import random
  import numpy
  import pytest
  from flaky import flaky
  from dowhy.gcm.independence_test import approx_kernel_based, kernel_based
label_desc: Use image node_id 7 for calling a global function with example usage: test_given_constant_inputs_when_perform_kernel_based_test_then_returns_non_nan_value() without return types