code: def test_hermmulx(self):
      assert_equal(herm.hermmulx([0]), [0])
      assert_equal(herm.hermmulx([1]), [0, 0.5])
      for i in range(1, 5):
          ser = [0] * i + [1]
          tgt = [0] * (i - 1) + [i, 0, 0.5]
          assert_equal(herm.hermmulx(ser), tgt)
  
imports: from functools import reduce
  import numpy
  import numpy.polynomial.hermite
  from numpy.polynomial.polynomial import polyval
  from numpy.testing import assert_almost_equal, assert_raises, assert_equal, assert_
label_desc: Use image node_id 3 for calling the TestArithmetic obj's underlying member method code with example usage: obj.test_hermmulx() without return types