+ 'insert:add a message to the maildir and notmuch database'
+ 'new:incorporate new mail into the notmuch database'
+ 'reply:constructs a reply template for a set of messages'
+ 'restore:restores the tags from the given file (see notmuch dump)'
+ 'search:search for messages matching the given search terms'
+ 'show:show messages matching the given search terms'
+ 'tag:add/remove tags for all messages matching the search terms'