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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 is_replaceable(self, refobj):
 """Return whether the given reference of the refobject is replaceable or if it should just get deleted and loaded again. This will call :meth:`ReftypeInterface.is_replaceable`. :param refobj: the refobject to query :type refobj: refobj :returns: True, if replaceable :rtype: bool :raises: None """

        inter = self.get_typ_interface(self.get_typ(refobj))
        return inter.is_replaceable(refobj)