describe-treesit-mode.el

(defun describe-treesit-node (node &optional indent)
  (setq indent (or indent 0))
  (message "%s%s" (make-string (* 2 indent) ? ) node)
  (mapcar
   (lambda (n) (describe n (1+ indent)))
   (treesit-node-children node)))

;; Example
;; (describe (treesit-parse-string "fn f() {
;;     let b = '\"';
;; }" 'rust))