gistfile1.txt

user=> (defn ^bytes foo ^bytes [] (byte-array [(byte 1) (byte 2)]))
#'user/foo
user=> (meta #'foo)
{:ns #<Namespace user>, :name foo, :file "NO_SOURCE_PATH", :column 1, :line 4, :arglists ([]), :tag #<core$bytes clojure.core$bytes@3a9e7c70>}
user=> 

net.lshift.can.webapp.main-dynamic=> (defn foo ^bytes [] (byte-array [(byte 1) (byte 2)]))
#'net.lshift.can.webapp.main-dynamic/foo
net.lshift.can.webapp.main-dynamic=> (:arglists (meta #'foo))
([])
net.lshift.can.webapp.main-dynamic=> (meta (first (:arglists (meta #'foo))))
{:tag bytes}