code: def args_to_dict(args):
      # type: (str) -> DictUpperBound[str,str]
      
      arguments = dict()
      for arg in args.split(','):
          key, value = arg.split('=')
          arguments[key] = value
      return arguments
docs: Convert command line arguments in a comma separated string to a dictionary
  
      Args:
          args (str): Command line arguments
  
      Returns:
          DictUpperBound[str,str]: Dictionary of arguments