def setup_entity(self, ext_info, aliased_adapter):
    if ('selectable' not in self.__dict__):
        self.selectable = ext_info.selectable
    self.froms.add(ext_info.selectable)
def setup_entity(self, ext_info, aliased_adapter):
    if ('selectable' not in self.__dict__):
        self.selectable = ext_info.selectable
    self.froms.add(ext_info.selectable)