Is it possible to create options with conditional parameters with help generation like in linux tail?

In linux `tail` option `-f` and `--follow` are distinct in that former do not allow to set any values, but latter allow to set `name` or `descriptor` values.
```
-f, --follow[={name|descriptor}]
output appended data as the file grows;
an absent option argument means 'descriptor'
```

Is it possible to define options class to allow that **with** automatic help generation accordingly?
If it is not possible to generate help, is it possible to just create options to allow the distinction?

首先跟踪选项定义 API 和自动帮助生成 API，然后比较它们如何表示短别名和长别名。检查选项是否能够区分缺失的参数与明确提供的名称或描述符。完成的标准是支持条件参数，帮助输出符合所要求的尾部样式语法，或者记录该限制。

由索引模型根据 Issue 内容生成。