def increment_timing_data(self, **key_values):
        """Increments the timing data kept as part of this data structure to help diagnosis performance issues.

        The arguments should be key/value pairs where the keys name some sort of timing component and the value
        by which to increment the count for that timing component.

        If this is the first time a timing component is being incremented, the initial value is set to zero.
        """
        for key, value in key_values.iteritems():
            if self.__timing_data in key:
                amount = self.__timing_data[key]
            else:
                amount = 0.0
            amount += value
            self.__timing_data[key] = amount
dataset/ETHPy150Open scalyr/scalyr-agent-2/scalyr_agent/scalyr_client.py/AddEventsRequest.increment_timing_data/swapped operands of `in`