[O] org-sparse-tree using Lisp predicate?

[Reuben Garrett]

Is there functionality to build a sparse tree (as with org-sparse-tree) using a predicate from Lisp code? I want something like org-map-entries, but for narrowing/sparsing. Diving through the code, I think (org-scan-tags 'sparse-tree (lambda () … )) might be what I want, but am curious if anyone else has suggestions from working that use-case.

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Best regards,

Reuben Garrett