code: def test_gpr_uses_noise():
      """Test that gpr is using WhiteKernel"""
  
      X = np.random.normal(size=[100, 2])
      Y = np.random.normal(size=[100])
  
      g_gaussian = GaussianProcessRegressor(noise="gaussian")
      g_gaussian.fit(X, Y)
      m, sigma = g_gaussian.predict(X[0:1], return_cov=True)
      assert sigma > 0
  
label_desc: Use image node_id 1 for calling a global function with example usage: test_gpr_uses_noise() without return types