user=> (class 1) java.lang.Integer user=> (class [1 2 3]) clojure.lang.PersistentVector user=> (class (String. "foo")) java.lang.String
user=> (class 1) java.lang.Integer user=> (class [1 2 3]) clojure.lang.PersistentVector user=> (class (String. "foo")) java.lang.String
user=> (class 1) java.lang.Integer user=> (class [1 2 3]) clojure.lang.PersistentVector user=> (class (String. "foo")) java.lang.String