def _get_key_value(self, key, value, pair):
        if pair:
            key, value = pair.popitem()
        return key, value
Creates an event body parser form the specified regular expression (could be an
dataset/ETHPy150Open espeed/bulbs/bulbs/rexster/index.py/Index._get_key_value--crossover with--dataset/ETHPy150Open ARM-software/workload-automation/wlauto/utils/trace_cmd.py/regex_body_parser