(examples-for ampersand-syntax
  ("assigns multiple values at once ; value of expr is last assigned value"
   (with (a 1 b { foo 2 } c { d { e 3 } })
         (let res (= a 10 b.foo 20 (&d.e c) 30)
           (list a b.foo c.d.e res)))
   (10 20 30 30)))