code: def test_polynomial_multiplication(self):
      self.assertEqual(self.p0 * self.p2, Polynomial([]))
      self.assertEqual(self.p1 * self.p2, Polynomial([]))
  
      self.assertEqual(
          self.p2 * self.p3,
          Polynomial(
              [
                  Monomial({1: 2}, 4),
                  Monomial({1: 3, 2: -1}, Fraction(3, 1)),
              ]
          ),
      )
      return
  
file_path: keon-algos/tests/test_polynomial.py
imports: from algorithms.maths.polynomial import Polynomial, Monomial
  from fractions import Fraction
  import math
  import unittest
label_desc: Use image node_id 4 for calling the TestSuite obj's underlying member method code with example usage: obj.test_polynomial_multiplication() without return types