@cached_property
    def on_close(self):
        return blinker.Signal(doc='Emitted after the connection is closed.')
Sets allowed values
dataset/ETHPy150Open wtolson/gnsq/gnsq/nsqd.py/Nsqd.on_close--crossover with--dataset/ETHPy150Open treeio/treeio/treeio/services/forms.py/ServiceLevelAgreementForm.__init__