def probe(self, value):

        if value is None:
            self.count += 1
Create new handlers map.
dataset/ETHPy150Open Stiivi/brewery/brewery/probes.py/MissingValuesProbe.probe--crossover with--dataset/ETHPy150Open GoogleCloudPlatform/python-compat-runtime/appengine-compat/exported_appengine_sdk/google/appengine/ext/mapreduce/main.py/create_handlers_map