-record(state, {
    self :: gleam@erlang@process:subject(sprocket@internal@reducer:reducer_message(any(), any())),
    model :: any(),
    update :: fun((any(), any()) -> {any(),
        list(fun((fun((any()) -> nil)) -> nil))}),
    notify :: fun((any()) -> nil),
    pending_commands :: list(fun((fun((any()) -> nil)) -> nil))
}).