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diff --git a/lib/dialyzer/test/opaque_SUITE_data/src/ewgi/ewgi_api.erl b/lib/dialyzer/test/opaque_SUITE_data/src/ewgi/ewgi_api.erl
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+%%%-------------------------------------------------------------------
+%%% File    : ewgi_api.erl
+%%% Authors : Filippo Pacini <[email protected]>
+%%%           Hunter Morris <[email protected]>
+%%% License :
+%%% The contents of this file are subject to the Mozilla Public
+%%% License Version 1.1 (the "License"); you may not use this file
+%%% except in compliance with the License. You may obtain a copy of
+%%% the License at http://www.mozilla.org/MPL/
+%%%
+%%% Software distributed under the License is distributed on an "AS IS"
+%%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%%% the License for the specific language governing rights and
+%%% limitations under the License.
+%%% The Initial Developer of the Original Code is S.G. Consulting
+%%% srl. Portions created by S.G. Consulting s.r.l. are Copyright (C)
+%%% 2007 S.G. Consulting srl. All Rights Reserved.
+%%%
+%%% @doc
+%%% <p>ewgi API. Defines a low level CGI like API.</p>
+%%%
+%%% @end
+%%%
+%%% Created : 10 Oct 2007 by Filippo Pacini <[email protected]>
+%%%-------------------------------------------------------------------
+-module(ewgi_api).
+
+-include_lib("ewgi.hrl").
+
+-export([get_all_headers/1, get_all_data/1]).
+
+-spec request(ewgi_context()) -> ewgi_request().
+request(Ctx) when ?IS_EWGI_CONTEXT(Ctx) ->
+    ?GET_EWGI_REQUEST(Ctx).
+
+-spec headers(ewgi_context()) -> ewgi_http_headers().
+headers(Ctx) when ?IS_EWGI_CONTEXT(Ctx) ->
+    ?GET_HTTP_HEADERS(request(Ctx)).
+
+get_header_value(Hdr0, Ctx) when is_list(Hdr0), ?IS_EWGI_CONTEXT(Ctx) ->
+    Hdr = string:to_lower(Hdr0),
+    get_header1(Hdr, Ctx).
+
+get_header1("accept", Ctx) when ?IS_EWGI_CONTEXT(Ctx) ->
+    ?GET_HTTP_ACCEPT(headers(Ctx)).
+
+unzip_header_value([{_,_}|_]=V) ->
+	{_, V1} = lists:unzip(V),
+	string:join(V1, ", ");
+unzip_header_value(V) ->
+	V.
+
+get_all_headers(Ctx) when ?IS_EWGI_CONTEXT(Ctx) ->
+    H = headers(Ctx),
+    Other = gb_trees:to_list(?GET_HTTP_OTHER(H)),
+    Acc = [{K, unzip_header_value(V)} || {K, V} <- Other],
+    L = [{"accept", get_header_value("accept", Ctx)}|Acc],
+    lists:filter(fun({_, undefined}) -> false; (_) -> true end, L).
+
+-spec ewgi_spec(ewgi_context()) -> ewgi_spec().
+ewgi_spec(Ctx) when ?IS_EWGI_CONTEXT(Ctx) ->
+    ?GET_EWGI(request(Ctx)).
+
+get_all_data(Ctx) when ?IS_EWGI_CONTEXT(Ctx) ->
+    ?GET_EWGI_DATA(ewgi_spec(Ctx)).