def dispatch(self, parameterName, value):
        if value is None:
            raise UsageError("Parameter '%s' requires an argument."
                             % (parameterName,))
        try:
            value = self.coerce(value)
        except ValueError, e:
            raise UsageError("Parameter type enforcement failed: %s" % (e,))

        self.options.opts[parameterName] = value
Gets the counters for this service
dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/python/usage.py/CoerceParameter.dispatch--crossover with--dataset/ETHPy150Open cloudera/impyla/impala/_thrift_gen/fb303/FacebookService.py/Iface.getCounters