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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 find_model(sender, model_name):
 """ Register new model to ORM """

    MC = get_mc()
    model = MC.get((MC.c.model_name==model_name) & (MC.c.uuid!=''))
    if model:
        model_inst = model.get_instance()
        orm.set_model(model_name, model_inst.table_name, appname=__name__, model_path='')
        return orm.__models__.get(model_name)