gistfile1.txt

-- trying in elm-repl

import Random

type Msg = Foo Bool

r = (Random.generate Foo Random.bool)
-- { type = "leaf", home = "Random", value = Generate (Generator <function>) }
--    : Platform.Cmd.Cmd Repl.Msg

-- how to get the random value ?
r.value -- error
-- TYPE MISMATCH --------------------------------------------- repl-temp-000.elm
-- `r` is being used in an unexpected way.
-- 5|   r.value
--      ^
-- Based on its definition, `r` has this type:
--  Cmd Msg
-- But you are trying to use it as:
--  { b | value : a }