public void addRequestProperty(String key, String value) {
            requestProperties.computeIfAbsent(key, k -> new ArrayList<>()).add(value);
        }

        @Override
        public void setRequestProperty(String key, String value) {
            List<String> list = new ArrayList<>();
            list.add(value);
            requestProperties.put(key, list);
        }

                        connection.addRequestProperty(values[0], values[1]);
                    }
                }
                if (compression != null) {
                    connection.setRequestProperty("Accept-Encoding", compression);
                }

                if (connectionBuilder != null) {
                    connectionBuilder.accept(this, connection);
                }