-spec erase(atom(), binary()) -> ok | {error, not_found}.

-spec erase_pool(atom()) -> non_neg_integer().

-spec erase_server(shackle:request_id()) -> ok.

-spec get(atom(), binary()) -> {ok, term()} | {error, not_found}.

-spec init() -> marina_cache.

-spec put(atom(), binary(), term()) -> ok.