code: def bench_R3():
      "a = [bool(f==f) for _ in range(10)]"
      f = x + y + z
      [bool(f == f) for _ in range(10)]
  
imports: from sympy.core.random import random
  from sympy.core.numbers import I, Integer, pi
  from sympy.core.symbol import Symbol
  from sympy.core.sympify import sympify
  from sympy.functions.elementary.miscellaneous import sqrt
  from sympy.functions.elementary.trigonometric import sin
  from sympy.polys.polytools import factor
  from sympy.simplify.simplify import simplify
  from sympy.abc import x, y, z
  from timeit import default_timer
label_desc: Use image node_id 3 for calling a global function with example usage: bench_R3() without return types