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File name : interfaces.py

Content :class ExportableInterface(object): pass class ExporterInterface(object): def export(self, method, in_signature, out_signature): # to be overridden by concrete implementation raise NotImplementedError() def signal(self, method, out_signature): # to be overridden by concrete implementation raise NotImplementedError() def send_signal(self, signal, *args, **kwargs): # to be overridden by concrete implementation raise NotImplementedError() def start(self): raise NotImplementedError() def stop(self): raise NotImplementedError() def period_check(self): pass

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