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diff --git a/sources/pyside2/doc/codesnippets/doc/src/snippets/modelview-subclasses/model.cpp b/sources/pyside2/doc/codesnippets/doc/src/snippets/modelview-subclasses/model.cpp
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--- a/sources/pyside2/doc/codesnippets/doc/src/snippets/modelview-subclasses/model.cpp
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-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the examples of Qt for Python.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** 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.
-**
-** BSD License Usage
-** Alternatively, you may use this file under the terms of the BSD license
-** as follows:
-**
-** "Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are
-** met:
-**   * Redistributions of source code must retain the above copyright
-**     notice, this list of conditions and the following disclaimer.
-**   * Redistributions in binary form must reproduce the above copyright
-**     notice, this list of conditions and the following disclaimer in
-**     the documentation and/or other materials provided with the
-**     distribution.
-**   * Neither the name of The Qt Company Ltd nor the names of its
-**     contributors may be used to endorse or promote products derived
-**     from this software without specific prior written permission.
-**
-**
-** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-/*
-  model.cpp
-
-  A simple model that uses a QVector as its data source.
-*/
-
-#include "model.h"
-
-/*!
-    Returns the number of items in the string list as the number of rows
-    in the model.
-*/
-
-int LinearModel::rowCount(const QModelIndex &parent) const
-{
-    Q_USING(parent);
-
-    return values.count();
-}
-
-/*
-    Returns an appropriate value for the requested data.
-    If the view requests an invalid index, an invalid variant is returned.
-    If a header is requested then we just return the column or row number,
-    depending on the orientation of the header.
-    Any valid index that corresponds to a string in the list causes that
-    string to be returned.
-*/
-
-/*!
-    Returns a model index for other component to use when referencing the
-    item specified by the given row, column, and type. The parent index
-    is ignored.
-*/
-
-QModelIndex LinearModel::index(int row, int column, const QModelIndex &parent) const
-{
-    if (parent == QModelIndex() && row >= 0 && row < rowCount()
-        && column == 0)
-        return createIndex(row, column, 0);
-    else
-        return QModelIndex();
-}
-
-QVariant LinearModel::data(const QModelIndex &index, int role) const
-{
-    Q_UNUSED(role);
-
-    if (!index.isValid())
-        return QVariant();
-
-    return values.at(index.row());
-}
-
-/*!
-    Returns Qt::ItemIsEditable so that all items in the vector can be edited.
-*/
-
-Qt::ItemFlags LinearModel::flags(const QModelIndex &index) const
-{
-    // all items in the model are editable
-    return QAbstractListModel::flags(index) | Qt::ItemIsEditable;
-}
-
-/*!
-    Changes an item in the string list, but only if the following conditions
-    are met:
-
-    * The index supplied is valid.
-    * The index corresponds to an item to be shown in a view.
-    * The role associated with editing text is specified.
-
-    The dataChanged() signal is emitted if the item is changed.
-*/
-
-bool LinearModel::setData(const QModelIndex &index,
-                          const QVariant &value, int role)
-{
-    if (!index.isValid() || role != Qt::EditRole)
-        return false;
-    values.replace(index.row(), value.toInt());
-    emit dataChanged(index, index);
-    return true;
-}
-
-/*!
-    Inserts a number of rows into the model at the specified position.
-*/
-
-bool LinearModel::insertRows(int position, int rows, const QModelIndex &parent)
-{
-    beginInsertRows(parent, position, position + rows - 1);
-
-    values.insert(position, rows, 0);
-
-    endInsertRows();
-    return true;
-}
-
-/*!
-    Removes a number of rows from the model at the specified position.
-*/
-
-bool LinearModel::removeRows(int position, int rows, const QModelIndex &parent)
-{
-    beginRemoveRows(QModelIndex(), position, position+rows-1);
-
-    values.remove(position, rows);
-
-    endRemoveRows();
-    return true;
-}