code: def test_theano_function_simple():
      """Test theano_function() with single output."""
      f = theano_function_([x, y], [x + y])
      assert f(2, 3) == 5
  
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 24 for calling a global function with example usage: test_theano_function_simple() without return types