def update(self, data):
        return data
Called when the user begins to click on this button. Subclasses may
dataset/ETHPy150Open twisted/twisted/twisted/conch/ssh/transport.py/_NullEncryptionContext.update--crossover with--dataset/ETHPy150Open anandology/pyjamas/library/pyjamas/ui/CustomButton.py/CustomButton.onClickStart