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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def add_view(self, view, name=None, position=None, closable=False, floatable=True, floating=None):
 """Add a widget to the main window."""


        # Set the name in the view.
        view.view_index = self._get_view_index(view)
        # The view name is `<class_name><view_index>`, e.g. `MyView0`.
        view.name = name or view.__class__.__name__ + str(view.view_index)

        # Get the Qt canvas for VisPy and matplotlib views.
        widget = _try_get_vispy_canvas(view)
        widget = _try_get_matplotlib_canvas(widget)

        dock_widget = _create_dock_widget(widget, view.name,
                                          closable=closable,
                                          floatable=floatable,
                                          )
        self.addDockWidget(_get_dock_position(position), dock_widget)
        if floating is not None:
            dock_widget.setFloating(floating)
        dock_widget.view = view

        # Emit the close_view event when the dock widget is closed.
        @dock_widget.connect_
        def on_close_widget():
            self.emit('close_view', view)

        dock_widget.show()
        self.emit('add_view', view)
        logger.log(5, "Add %s to GUI.", view.name)
        return dock_widget