code: def test_huber_Hampel(self):
      hh = scale.Huber(norm=scale.norms.Hampel())
      assert_almost_equal(hh(self.chem)[0], 3.17434, DECIMAL)
      assert_almost_equal(hh(self.chem)[1], 0.66782, DECIMAL)
  
imports: import numpy
  from numpy.random import standard_normal
  from numpy.testing import assert_almost_equal, assert_equal
  import pytest
  from scipy.stats import norm
  import statsmodels.api
  import statsmodels.robust.scale
  from statsmodels.robust.scale import mad
label_desc: Use image node_id 10 for calling the TestChem obj's underlying member method code with example usage: obj.test_huber_Hampel() without return types