code: def test_not_supported():
      f = Function("f")
      name_expr = ("test", [f(x).diff(x), S.ComplexInfinity])
      (result,) = codegen(name_expr, "Rust", header=False, empty=False)
      source = result[1]
      expected = (
          "fn test(x: f64) -> (f64, f64) {\n"
          "    // unsupported: Derivative(f(x), x)\n"
          "    // unsupported: zoo\n"
          "    let out1 = Derivative(f(x), x);\n"
          "    let out2 = zoo;\n"
          "    (out1, out2)\n"
          "}\n"
      )
      assert source == expected
  
imports: from io import StringIO
  from sympy.core import S, symbols, pi, Catalan, EulerGamma, Function
  from sympy.core.relational import Equality
  from sympy.functions.elementary.piecewise import Piecewise
  from sympy.utilities.codegen import RustCodeGen, codegen, make_routine
  from sympy.testing.pytest import XFAIL
  import sympy
label_desc: Use image node_id 20 for calling a global function with example usage: test_not_supported() without return types