How to extract bindings from `pcase-let*`?

[Okam]

Hello,

I would like to extract the bindings created by `pcase-let*` to use them
in a `setq` form.  Is there a good way of doing this?

Previously, I was using `macroexpand` on `pcase-let*` and extracting the
bindings from the list, but after the expansion produced by `pcase-let*`
changed recently, I realized that this way assumes too much.

Thank you.