code: def _llvm_jit_code(args, expr, signature, callback_type):
      """Create a native code function from a SymPy expression"""
      if callback_type is None:
          jit = LLVMJitCode(signature)
      else:
          jit = LLVMJitCodeCallback(signature)
  
      jit._create_args(args)
      jit._create_function_base()
      jit._create_param_dict(args)
      strmod = jit._create_function(expr)
      if False:
          print("LLVM IR")
          print(strmod)
      fptr = jit._compile_function(strmod)
      return fptr
  
imports: import ctypes
  from sympy.external import import_module
  from sympy.printing.printer import Printer
  from sympy.core.singleton import S
  from sympy.tensor.indexed import IndexedBase
  from sympy.utilities.decorator import doctest_depends_on
label_desc: Use image node_id 1 for calling a global function with example usage: _llvm_jit_code(args, expr, signature, callback_type) and returns: fptr