code: def _(a, b):
      return S.UniversalSet
  
imports: from sympy.core.singleton import S
  from sympy.core.sympify import sympify
  from sympy.functions.elementary.miscellaneous import Min, Max
  from sympy.sets.sets import EmptySet, FiniteSet, Intersection, Interval, ProductSet, Set, Union, UniversalSet
  from sympy.sets.fancysets import ComplexRegion, Naturals, Naturals0, Integers, Rationals, Reals
  from sympy.multipledispatch import Dispatcher
label_desc: Use image node_id 14 for calling a global function with example usage: _(a, b) and returns: S