code: def test_gosper_normal():
      eq = 4 * n + 5, 2 * (4 * n + 1) * (2 * n + 3), n
      assert gosper_normal(*eq) == (
          Poly(Rational(1, 4), n),
          Poly(n + Rational(3, 2)),
          Poly(n + Rational(1, 4)),
      )
      assert gosper_normal(*eq, polys=False) == (
          Rational(1, 4),
          n + Rational(3, 2),
          n + Rational(1, 4),
      )
  
imports: from sympy.core.numbers import Rational, pi
  from sympy.core.singleton import S
  from sympy.core.symbol import Symbol
  from sympy.functions.combinatorial.factorials import binomial, factorial
  from sympy.functions.elementary.exponential import exp, log
  from sympy.functions.elementary.miscellaneous import sqrt
  from sympy.functions.special.gamma_functions import gamma
  from sympy.polys.polytools import Poly
  from sympy.simplify.simplify import simplify
  from sympy.concrete.gosper import gosper_normal, gosper_sum, gosper_term
  from sympy.abc import a, b, j, k, m, n, r, x
label_desc: Use image node_id 1 for calling a global function with example usage: test_gosper_normal() without return types