Method _set_polymorphic_on

lib/sqlalchemy/orm/mapper.py:1401–1403

(self, polymorphic_on)

                self._adapt_inherited_property(key, prop, False)

    def _set_polymorphic_on(self, polymorphic_on):
        self.polymorphic_on = polymorphic_on
        self._configure_polymorphic_setter(True)

    def _configure_class_instrumentation(self):
        """Associate this Mapper with the