keys:get-shifted-key-list

• (keys:get-shifted-key-list) -> (listof string)

  This returns a list of the keys that are typed using shift.

  It returns:

  (list "?" ":" "~" "\"" "|"
        "<" ">" "{" "}" "[" "]" "(" ")"
        "!" "@" "#" "$" "%" "^" "&" "*" "_" "+")

  This is not specific to a particular keyboard, but it should be.