code: def test_1():
      from sympy.abc import x
  
      print_gtk(x**2, start_viewer=False)
      print_gtk(x**2 + sin(x) / 4, start_viewer=False)
  
imports: from sympy.functions.elementary.trigonometric import sin
  from sympy.printing.gtk import print_gtk
  from sympy.testing.pytest import XFAIL, raises
label_desc: Use image node_id 1 for calling a global function with example usage: test_1() without return types