def handles_write(self, fd, callback):
        return callback in self.handlers[fd]['write']
:param config: A saml2.config.Config instance
dataset/ETHPy150Open Shizmob/pydle/pydle/async.py/EventLoop.handles_write--crossover with--dataset/ETHPy150Open cloudera/hue/desktop/core/ext-py/pysaml2-2.4.0/src/saml2/client_base.py/Base.__init__