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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 remove_aliases(target):
 """ Remove all aliases to a destination """


    if isinstance(target, model.Entry):
        orm.delete(p for p in model.PathAlias if p.entry == target)
    elif isinstance(target, model.Category):
        orm.delete(p for p in model.PathAlias if p.category == target)
    else:
        raise TypeError("Unknown type {}".format(type(target)))
    orm.commit()