code: def test_Limits_simple_3b():
      h = Symbol("h")
      assert (
          limit(((x + h) ** 3 - x**3) / h, h, 0) == 3 * x**2
      )  # 197
      assert limit((1 / (1 - x) - 3 / (1 - x**3)), x, 1) == -1  # 198
      assert (
          limit((sqrt(1 + x) - 1) / (root3(1 + x) - 1), x, 0)
          == Rational(3) / 2
      )  # Primer 4
      assert (
          limit((sqrt(x) - 1) / (x - 1), x, 1) == Rational(1) / 2
      )  # 199
      assert limit((sqrt(x) - 8) / (root3(x) - 4), x, 64) == 3  # 200
      assert (
          limit((root3(x) - 1) / (root4(x) - 1), x, 1)
          == Rational(4) / 3
      )  # 201
      assert (
          limit((root3(x**2) - 2 * root3(x) + 1) / (x - 1) ** 2, x, 1)
          == Rational(1) / 9
      )
  
imports: from sympy.core.numbers import Rational, oo, pi
  from sympy.core.singleton import S
  from sympy.core.symbol import Symbol
  from sympy.functions.elementary.exponential import exp, log
  from sympy.functions.elementary.miscellaneous import root, sqrt
  from sympy.functions.elementary.trigonometric import asin, cos, sin, tan
  from sympy.polys.rationaltools import together
  from sympy.series.limits import limit
label_desc: Use image node_id 8 for calling a global function with example usage: test_Limits_simple_3b() without return types