def help_tuples(self):
        # TODO: argument/flag API must change :(
        # having to call to_flag on 1st name of an Argument is just dumb.
        # To pass in an Argument object to help_for may require moderate
        # changes?
        # Cast to list to ensure non-generator on Python 3.
        return list(map(
            lambda x: self.help_for(to_flag(x.name)),
            sorted(self.flags.values(), key=flag_key)
        ))
Return sorted iterable of help tuples for all member Arguments.
dataset/ETHPy150Open pyinvoke/invoke/invoke/parser/context.py/ParserContext.help_tuples