cl-remove-if-not
cl-remove-if-not is an autoloaded compiled Lisp function in `cl-seq.el
'.
(cl-remove-if-not PREDICATE SEQ [KEYWORD VALUE]...)
Remove all items not satisfying PREDICATE in SEQ.
This is a non-destructive function; it makes a copy of SEQ if necessary
to avoid corrupting the original SEQ.
Keywords supported: :key :count :start :end :from-end