code: def GetVersion():
    
    with open(os.path.join('googleads', 'common.py')) as versions_file:
      source = versions_file.read()
    return re.search('\\nVERSION = \'(.*?)\'', source).group(1)
docs: Gets the version from googleads/common.py.
  
    We can't import this directly because new users would get ImportErrors on our
    third party dependencies.
  
    Returns:
      The version of the library.