(defun org-beamer-initialize-open-trackers ()
"Reset variables that track if certain environments are open during export."
(defun org-beamer-initialize-open-trackers ()
"Reset variables that track if certain environments are open during export."
((stringp org-beamer-frame-level-now)
(setq org-beamer-frame-level-now
(string-to-number org-beamer-frame-level-now))))
((stringp org-beamer-frame-level-now)
(setq org-beamer-frame-level-now
(string-to-number org-beamer-frame-level-now))))