code: def test_weights_assignment(self):
      weights = [1.0, 2.0]
      pen = smpen.PseudoHuber(0.1, weights=weights)
      assert_equal(pen.weights, weights)
  
imports: import numpy
  from numpy.testing import assert_allclose, assert_equal
  import statsmodels.base._penalties
  from statsmodels.tools.numdiff import approx_fprime, approx_hess
label_desc: Use image node_id 4 for calling the TestPseudoHuber obj's underlying member method code with example usage: obj.test_weights_assignment() without return types