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%% @spec start_link() -> ServerRet
%% @doc Start the reloader.
start_link() ->
    gen_server:start_link({local, ?MODULE}, ?MODULE, [], []).

%% @spec stop() -> ok
%% @doc Stop the reloader.
stop() ->
    gen_server:call(?MODULE, stop).

%% gen_server callbacks

%% @spec init([]) -> {ok, State}
%% @doc gen_server init, opens the server in an initial state.
init([]) ->
    {ok, TRef} = timer:send_interval(timer:seconds(1), doit),
    {ok, #state{last = stamp(), tref = TRef}}.

%% @spec handle_call(Args, From, State) -> tuple()
%% @doc gen_server callback.
handle_call(stop, _From, State) ->