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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_node_label(self, model):
 """ Defines how labels are constructed from models. Default - uses verbose name, lines breaks where sensible """

        if model.is_proxy:
            label = "(P) %s" % (model.name.title())
        else:
            label = "%s" % (model.name.title())

        line = ""
        new_label = []
        for w in label.split(" "):
            if len(line + w) > 15:
                new_label.append(line)
                line = w
            else:
                line += " "
                line += w
        new_label.append(line)

        return "\n".join(new_label)