code: def test_trigintegrate_symbolic():
      n = Symbol("n", integer=True)
      assert trigintegrate(cos(x) ** n, x) is None
      assert trigintegrate(sin(x) ** n, x) is None
      assert trigintegrate(cot(x) ** n, x) is None
  
imports: from sympy.core import Ne, Rational, Symbol
  from sympy.functions import sin, cos, tan, csc, sec, cot, log, Piecewise
  from sympy.integrals.trigonometry import trigintegrate
label_desc: Use image node_id 4 for calling a global function with example usage: test_trigintegrate_symbolic() without return types