Variable: read-key-empty-map
read-key-empty-map is a variable defined in subr.el.gz.
Value
Documentation
Used internally by read-key.
Source Code
;; Defined in /usr/src/emacs/lisp/subr.el.gz
;;;; Input and display facilities.
;; The following maps are used by `read-key' to remove all key
;; bindings while calling `read-key-sequence'. This way the keys
;; returned are independent of the key binding state.
(defconst read-key-empty-map (make-sparse-keymap)
"Used internally by `read-key'.")