code: def test_factorial():
      n = sy.Symbol("n")
      assert theano_code_(sy.factorial(n))
  
imports: import logging
  from sympy.external import import_module
  from sympy.testing.pytest import raises, SKIP, warns_deprecated_sympy
  import sympy
  from sympy.core.singleton import S
  from sympy.abc import x, y, z, t
  from sympy.printing.theanocode import theano_code, dim_handling, theano_function
label_desc: Use image node_id 22 for calling a global function with example usage: test_factorial() without return types