'Decide Yes or No, without asking anybody
:param str message: question for the user
:param dict kwargs: absorbs yes_label, no_label
:raises errors.MissingCommandlineFlag: if there was no default
:returns: True for "Yes", False for "No"
:rtype: bool'

def yesno(self, message, yes_label=None, no_label=None, default=None, cli_flag=None, **unused_kwargs):

    if (default is None):
        self._interaction_fail(message, cli_flag)
    else:
        return default
