(define-key map "!" 'notmuch-show-toggle-elide-non-matching)
(define-key map "$" 'notmuch-show-toggle-process-crypto)
(define-key map "<" 'notmuch-show-toggle-thread-indentation)
(define-key map "!" 'notmuch-show-toggle-elide-non-matching)
(define-key map "$" 'notmuch-show-toggle-process-crypto)
(define-key map "<" 'notmuch-show-toggle-thread-indentation)