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diff --git a/aoc2023/build/packages/pqueue/test/queue_srv.erl b/aoc2023/build/packages/pqueue/test/queue_srv.erl
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+%%%-------------------------------------------------------------------
+%%% @author Jesper Louis andersen <>
+%%% @copyright (C) 2011, Jesper Louis andersen
+%%% @doc
+%%%
+%%% @end
+%%% Created : 11 Nov 2011 by Jesper Louis andersen <>
+%%%-------------------------------------------------------------------
+-module(queue_srv).
+
+-behaviour(gen_server).
+
+%% API
+-export([start_link/1, stop/0, len/0, in/1, in/2, is_empty/0,
+         out/0, out/1, pout/0,
+         is_queue/0, to_list/0]).
+
+%% gen_server callbacks
+-export([init/1, handle_call/3, handle_cast/2, handle_info/2,
+         terminate/2, code_change/3]).
+
+-define(SERVER, ?MODULE). 
+
+-record(state, { mod, q }).
+
+%%%===================================================================
+%%% API
+%%%===================================================================
+
+%%--------------------------------------------------------------------
+%% @doc
+%% Starts the server
+%%
+%% @spec start_link(Mod) -> {ok, Pid} | ignore | {error, Error}
+%% @end
+%%--------------------------------------------------------------------
+start_link(Mod) ->
+    gen_server:start_link({local, ?SERVER}, ?MODULE, [Mod], []).
+
+stop() ->
+    gen_server:stop(?SERVER).
+
+call(M) ->
+    gen_server:call(?SERVER, M, infinity).
+
+in(I) ->
+    call({in, I}).
+
+in(I, P) ->
+    call({in, I, P}).
+
+len() ->
+    call(len).
+
+is_empty() ->
+    call(is_empty).
+
+is_queue() ->
+    call(is_queue).
+
+to_list() ->
+    call(to_list).
+
+out() ->
+    call(out).
+
+out(P) ->
+    call({out, P}).
+
+pout() ->
+    call(pout).
+
+%%%===================================================================
+%%% gen_server callbacks
+%%%===================================================================
+
+%%--------------------------------------------------------------------
+%% @private
+%% @doc
+%% Initializes the server
+%%
+%% @spec init(Args) -> {ok, State} |
+%%                     {ok, State, Timeout} |
+%%                     ignore |
+%%                     {stop, Reason}
+%% @end
+%%--------------------------------------------------------------------
+init([Mod]) ->
+    {ok, #state{ mod = Mod,
+                 q = Mod:new() }}.
+
+%%--------------------------------------------------------------------
+%% @private
+%% @doc
+%% Handling call messages
+%%
+%% @spec handle_call(Request, From, State) ->
+%%                                   {reply, Reply, State} |
+%%                                   {reply, Reply, State, Timeout} |
+%%                                   {noreply, State} |
+%%                                   {noreply, State, Timeout} |
+%%                                   {stop, Reason, Reply, State} |
+%%                                   {stop, Reason, State}
+%% @end
+%%--------------------------------------------------------------------
+handle_call({in, Item}, _F, #state { q = Q, mod = M } = S) ->
+    NQ = M:in(Item, Q),
+    {reply, ok, S#state { q = NQ }};
+handle_call({in, Item, Prio}, _F, #state { q = Q, mod = M } = S) ->
+    NQ = M:in(Item, Prio, Q),
+    {reply, ok, S#state { q = NQ }};
+handle_call({out, P},         _F, #state { q = Q, mod = M } = S) ->
+    {R, NQ} = M:out(P, Q),
+    {reply, R, S#state { q = NQ }};
+handle_call(Ty, _F, #state { q = Q, mod = M } = S) when Ty == out;
+                                                        Ty == pout ->
+    {R, NQ} = M:Ty(Q),
+    {reply, R, S#state { q = NQ }};
+handle_call(Ty, _F, #state { q = Q, mod = M } = S) when Ty == is_queue;
+                                                        Ty == is_empty;
+                                                        Ty == len;
+                                                        Ty == to_list ->
+    R = M:Ty(Q),
+    {reply, R, S};
+handle_call(Req, From, State) ->
+    error_logger:info_report([{handle_call, Req, From, State}]),
+    Reply = ok,
+    {reply, Reply, State}.
+
+%%--------------------------------------------------------------------
+%% @private
+%% @doc
+%% Handling cast messages
+%%
+%% @spec handle_cast(Msg, State) -> {noreply, State} |
+%%                                  {noreply, State, Timeout} |
+%%                                  {stop, Reason, State}
+%% @end
+%%--------------------------------------------------------------------
+handle_cast(_Msg, State) ->
+    {noreply, State}.
+
+%%--------------------------------------------------------------------
+%% @private
+%% @doc
+%% Handling all non call/cast messages
+%%
+%% @spec handle_info(Info, State) -> {noreply, State} |
+%%                                   {noreply, State, Timeout} |
+%%                                   {stop, Reason, State}
+%% @end
+%%--------------------------------------------------------------------
+handle_info(_Info, State) ->
+    {noreply, State}.
+
+%%--------------------------------------------------------------------
+%% @private
+%% @doc
+%% This function is called by a gen_server when it is about to
+%% terminate. It should be the opposite of Module:init/1 and do any
+%% necessary cleaning up. When it returns, the gen_server terminates
+%% with Reason. The return value is ignored.
+%%
+%% @spec terminate(Reason, State) -> void()
+%% @end
+%%--------------------------------------------------------------------
+terminate(_Reason, _State) ->
+    ok.
+
+%%--------------------------------------------------------------------
+%% @private
+%% @doc
+%% Convert process state when code is changed
+%%
+%% @spec code_change(OldVsn, State, Extra) -> {ok, NewState}
+%% @end
+%%--------------------------------------------------------------------
+code_change(_OldVsn, State, _Extra) ->
+    {ok, State}.
+
+%%%===================================================================
+%%% Internal functions
+%%%===================================================================