code: def _(f, x):
      return None
  
imports: from sympy.core.singleton import S
  from sympy.sets.sets import Set
  from sympy.calculus.singularities import singularities
  from sympy.core import Expr, Add
  from sympy.core.function import Lambda, FunctionClass, diff, expand_mul
  from sympy.core.numbers import Float, oo
  from sympy.core.symbol import Dummy, symbols, Wild
  from sympy.functions.elementary.exponential import exp, log
  from sympy.functions.elementary.miscellaneous import Min, Max
  from sympy.logic.boolalg import true
  from sympy.multipledispatch import Dispatcher
  from sympy.sets import imageset, Interval, FiniteSet, Union, ImageSet, Intersection, Range, Complement
  from sympy.sets.sets import EmptySet, is_function_invertible_in_set
  from sympy.sets.fancysets import Integers, Naturals, Reals
  from sympy.functions.elementary.exponential import match_real_imag
label_desc: Use image node_id 1 for calling a global function with example usage: _(f, x) and returns: None