'Check whether ``model_class`` can be extended with ``cls``.'

@classmethod
def _build_model_check_base(model_class, cls):

    if (model_class._abstract and (not cls._abstract)):
        msg = "%s    transforms    the    abstract    model    %r    into    a    non-abstract    model.    That    class    should    either    inherit    from    AbstractModel,    or    set    a    different    '_name'."
        raise TypeError((msg % (cls, model_class._name)))
    if (model_class._transient != cls._transient):
        if model_class._transient:
            msg = "%s    transforms    the    transient    model    %r    into    a    non-transient    model.    That    class    should    either    inherit    from    TransientModel,    or    set    a    different    '_name'."
        else:
            msg = "%s    transforms    the    model    %r    into    a    transient    model.    That    class    should    either    inherit    from    Model,    or    set    a    different    '_name'."
        raise TypeError((msg % (cls, model_class._name)))
