Helper baseclass sets this.opts in setConfig, not this.config?

[tfh-cri]

I was trying to work out why the documented details around Scenario(...).config('SomeHelper', {...}) weren't working for me, and as
far as I can tell, the default base class implementation of _setConfig is actually setting this.opts rather than this.config (which I presume is the correct version, since it's mentioned both in the docs and is assigned initially in the constructor).

https://github.com/codeceptjs/helper/blob/master/helper.js#L48

Unless I'm misunderstanding something here, I'd expect _setConfig to also be updating config member?

[kobenguyent]

I could be wrong but per my understanding, this.config and this.options have different purposes.

this.config is like the global config of all helpers.

this.options, on the other hand, is the local config of a specific helper.

So let's say you're in a helper and want to call the a particular config parameter of another helper, using this.config.