code: def __init__(self, version):
      self.macros = {}
      self.vsbase = VS_BASE % version
      self.load_macros(version)
  
imports: import os
  import subprocess
  import sys
  import re
  import warnings
  from .errors import DistutilsExecError, DistutilsPlatformError, CompileError, LibError, LinkError
  from .ccompiler import CCompiler, gen_lib_options
  from ._log import log
  from .util import get_platform
  import winreg
label_desc: Use image node_id 1 to create a new MacroExpander object  with example: obj = MacroExpander(version)