Getting error function Joken.token/1 is undefined or private

Questions & Help Questions
,
1

I am getting the JWT Token from Google/Gmail Oath and now, I want to decode it using the Joken library. Following are the step I have done-

1- Added the code in mix.exs

{:joken, "~> 2.0"},

2- Added the code in config/dev.exs

config :joken, default_signer: "secret"

3- In new file, make a module

defmodule Apollo.Token do
 use Joken.Config

 def decode(token) do
   token
   |> Joken.token()
   |> Joken.peek()
 end
end,

4- Now, calling module from this like -
struct = Apollo.Token.decode(token)

Due to the 4th step, I am getting error that is Gettting error function Joken.token/1 is undefined or private. Your response will be highly appreciable.