key-translation-map

key-translation-map is a variable defined in `C source code'.
Its value is

(keymap
 (double-down-mouse-1 . mouse--down-1-maybe-follows-link)
 (down-mouse-1 . mouse--down-1-maybe-follows-link)
 (24 keymap
     (56 . iso-transl-ctl-x-8-map)))

• This variable may be risky if used as a file-local variable.

Documentation:
Keymap of key translations that can override keymaps.
This keymap works like `input-decode-map', but comes after `function-key-map'.
Another difference is that it is global rather than terminal-local.