code: def _preprocess_code(src):
      """Hack the C code implementing the model."""
      dst = "#include <stdio.h>\n" "#include <math.h>\n\n"
      dst = dst + src
      return dst
  
imports: import contextlib
  import json
  import os
  import re
  import shutil
  import tarfile
  import textwrap
  from datetime import datetime
  import numpy
  import tvm
  from tvm.contrib import utils
label_desc: Use image node_id 11 for calling a global function with example usage: _preprocess_code(src) and returns: dst