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diff --git a/sources/pyside6/libpyside/signalmanager.h b/sources/pyside6/libpyside/signalmanager.h
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+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt for Python.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef SIGNALMANAGER_H
+#define SIGNALMANAGER_H
+
+#include "pysidemacros.h"
+
+#include <sbkpython.h>
+#include <shibokenmacros.h>
+
+#include <QtCore/QMetaMethod>
+
+QT_FORWARD_DECLARE_CLASS(QDataStream)
+
+namespace PySide
+{
+
+/// Thin wrapper for PyObject which increases the reference count at the constructor but *NOT* at destructor.
+class PYSIDE_API PyObjectWrapper
+{
+public:
+    PyObjectWrapper(PyObjectWrapper&&) = delete;
+    PyObjectWrapper& operator=(PyObjectWrapper &&) = delete;
+
+    PyObjectWrapper();
+    explicit PyObjectWrapper(PyObject* me);
+    PyObjectWrapper(const PyObjectWrapper &other);
+    PyObjectWrapper& operator=(const PyObjectWrapper &other);
+
+    void reset(PyObject *o);
+
+    ~PyObjectWrapper();
+    operator PyObject*() const;
+
+private:
+    PyObject* m_me;
+};
+
+PYSIDE_API QDataStream &operator<<(QDataStream& out, const PyObjectWrapper& myObj);
+PYSIDE_API QDataStream &operator>>(QDataStream& in, PyObjectWrapper& myObj);
+
+class PYSIDE_API SignalManager
+{
+    Q_DISABLE_COPY(SignalManager)
+public:
+    static SignalManager& instance();
+
+    QObject* globalReceiver(QObject* sender, PyObject* callback);
+    void releaseGlobalReceiver(const QObject* sender, QObject* receiver);
+    int globalReceiverSlotIndex(QObject* sender, const char* slotSignature) const;
+    void notifyGlobalReceiver(QObject* receiver);
+
+    bool emitSignal(QObject* source, const char* signal, PyObject* args);
+    static int qt_metacall(QObject* object, QMetaObject::Call call, int id, void** args);
+
+    // Used to register a new signal/slot on QMetaobject of source.
+    static bool registerMetaMethod(QObject* source, const char* signature, QMetaMethod::MethodType type);
+    static int registerMetaMethodGetIndex(QObject* source, const char* signature, QMetaMethod::MethodType type);
+
+    // used to discovery metaobject
+    static const QMetaObject* retrieveMetaObject(PyObject* self);
+
+    // Used to discovery if SignalManager was connected with object "destroyed()" signal.
+    int countConnectionsWith(const QObject *object);
+
+    // Disconnect all signals managed by Globalreceiver
+    void clear();
+
+    // Utility function to call a python method usign args received in qt_metacall
+    static int callPythonMetaMethod(const QMetaMethod& method, void** args, PyObject* obj, bool isShortCuit);
+
+private:
+    struct SignalManagerPrivate;
+    SignalManagerPrivate* m_d;
+
+    SignalManager();
+    ~SignalManager();
+};
+
+}
+
+Q_DECLARE_METATYPE(PySide::PyObjectWrapper)
+
+#endif