How to use the thefuck.logs function in thefuck

def test_color(settings):
    settings.no_colors = False
    assert logs.color('red') == 'red'
    settings.no_colors = True
    assert logs.color('red') == ''

def is_match(self, command):
        """Returns `True` if rule matches the command.

        :type command: Command
        :rtype: bool

        """
        if command.output is None and self.requires_output:
            return False

        try:
            with logs.debug_time(u'Trying rule: {};'.format(self.name)):
                if self.match(command):
                    return True
        except Exception:
            logs.rule_failed(self, sys.exc_info())

def stderr(self):
        logs.warn('`stderr` is deprecated, please use `output` instead')
        return self.output