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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 get_side_length_of_resize_handle(view, item):
 """Calculate the side length of a resize handle :param rafcon.gui.mygaphas.view.ExtendedGtkView view: View :param rafcon.gui.mygaphas.items.state.StateView item: StateView :return: side length :rtype: float """

    from rafcon.gui.mygaphas.items.state import StateView, NameView
    if isinstance(item, StateView):
        return item.border_width * view.get_zoom_factor() / 1.5
    elif isinstance(item, NameView):
        return item.parent.border_width * view.get_zoom_factor() / 2.5
    return 0