'Exit enable mode.'

def exit_enable_mode(self, exit_command=u'exit'):

    delay_factor = self.select_delay_factor(delay_factor=0)
    output = u''
    if self.check_enable_mode():
        self.write_channel(self.normalize_cmd(exit_command))
        time.sleep((0.3 * delay_factor))
        self.set_base_prompt()
        if self.check_enable_mode():
            raise ValueError(u'Failed    to    exit    enable    mode.')
    return output
