code: def __get_min_os_version(sdk):
      if sdk == "macosx":
          return None
      if sdk in ("iphoneos", "iphonesimulator"):
          return "13.0"
      raise RuntimeError(f"Unsupported sdk: {sdk}")
  
file_path: tvm/python/tvm/contrib/xcode.py
imports: from __future__ import absolute_import
  import os
  import sys
  import subprocess
  import json
  from .._ffi.base import py_str
  from .None import utils
label_desc: Use image node_id 2 for calling a global function with example usage: __get_min_os_version(sdk) and returns: None, str