code: def test_rewrite_Sum():
      assert Product(1 - S.Half**2 / k**2, (k, 1, oo)).rewrite(
          Sum
      ) == exp(Sum(log(1 - 1 / (4 * k**2)), (k, 1, oo)))
  
imports: from sympy.concrete.products import Product, product
  from sympy.concrete.summations import Sum
  from sympy.core.function import Derivative, Function, diff
  from sympy.core.numbers import Rational, oo, pi
  from sympy.core.singleton import S
  from sympy.core.symbol import Dummy, Symbol, symbols
  from sympy.functions.combinatorial.factorials import rf, factorial
  from sympy.functions.elementary.exponential import exp, log
  from sympy.functions.elementary.miscellaneous import sqrt
  from sympy.functions.elementary.trigonometric import cos, sin
  from sympy.functions.special.tensor_functions import KroneckerDelta
  from sympy.simplify.combsimp import combsimp
  from sympy.simplify.simplify import simplify
  from sympy.testing.pytest import raises
label_desc: Use image node_id 20 for calling a global function with example usage: test_rewrite_Sum() without return types