code: def test_many():
      """Test printing a complex expression with multiple symbols."""
      expr = sy.exp(x**2 + sy.cos(y)) * sy.log(2 * z)
      comp = aesara_code_(expr)
      expected = aet.exp(xt**2 + aet.cos(yt)) * aet.log(2 * zt)
      assert theq(comp, expected)
  
imports: import logging
  from sympy.external import import_module
  from sympy.testing.pytest import raises, SKIP
  from sympy.utilities.exceptions import ignore_warnings
  import sympy
  from sympy.core.singleton import S
  from sympy.abc import x, y, z, t
  from sympy.printing.aesaracode import aesara_code, dim_handling, aesara_function
label_desc: Use image node_id 13 for calling a global function with example usage: test_many() without return types