This token type is _not_ a JWT and is useful for when you need one time access.

The one time token uses Ecto to keep track of it's contents if it has been used or not.

If a token has already been used it will be as though that token never existed and will not verify.

From the tests:

```elixir
{:ok, claims} = Impl.decode_and_verify(ctx.token)
assert claims["claims"] == ctx.claims["claims"]

assert Impl.resource_from_claims(claims) == {:ok, %{id: ctx.id}}

assert Impl.decode_and_verify(ctx.token) == {:error, :token_not_found_or_expired}
```

See `Guardian.Token.OneTime` for more information