Method register

Lib/test/test_asyncio/utils.py:316–319

(self, fileobj, events, data=None)

        self.keys = {}

    def register(self, fileobj, events, data=None):
        key = selectors.SelectorKey(fileobj, 0, events, data)
        self.keys[fileobj] = key
        return key

    def unregister(self, fileobj):
        return self.keys.pop(fileobj)