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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _FormatArgToken(self, token_data):
 """Formats an argument token as a dictionary of values. Args: token_data (bsm_token_data_arg32|bsm_token_data_arg64):
 AUT_ARG32 or AUT_ARG64 token data. Returns: dict[str, str]: token values. """

    return {
        'string': token_data.argument_value.rstrip('\x00'),
        'num_arg': token_data.argument_index,
        'is': token_data.argument_name}