Sorry, I wasn't clear about this. Because pretty much every platform has its own platform specific help, there is no reason to duplicate the code like this.

Instead, just check to see if *any* platform specific help exists by checking for the existence of `L.templates['help']` and render it if it does. As this is common functionality, you can put it in the shared base-class.

Basically, while the help-text is platform specific, the code that renders it can be platform agnostic.