Re: Generic functions: Specializers like `or' or `memq'?

[Emanuel Berg]

Stefan Monnier via Users list for the GNU Emacs text editor wrote:

> Not sure what "this" refers to. If you're talking about the
> use case for adding new specializers/generalizers, it's
> quite rare. It's mostly a detail of `cl-generic.el`
> used internally.

Specifically I mean when do you use specializers/generalizers
in ... general.

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