def _debug_info(self):
        """Show a list of recently variables info.
        """
        self._msg('DEBUG')
        self._msg2('WorkDir: {0}'.format(self._curdir))
        self._msg2('Cookies: {0}'.format(self._session.cookies))
        self._msg2('Headers: {0}'.format(self._session.headers))
        self._msg2('Configs: {0}'.format(self._config))
        self._msg2('Customs: {0}'.format(self._custom))
        self._msg2('Account: {0}'.format(self._account))
Show a list of recently variables info.