Method cb

Lib/test/test_asyncio/test_ssl.py:1080–1086

(_)

                    transport, self, sslctx_2, server_side=True))

                def cb(_):
                    try:
                        tr = fut.result()
                    except Exception as ex:
                        super_.connection_lost(ex)
                    else:
                        super_.connection_made(tr)
                fut.add_done_callback(cb)

        def server_protocol_factory():