def _get_key_value(self, key, value, pair):
        if pair:
            key, value = pair.popitem()
        return key, value
Initialize the connection, which is represented by two
dataset/ETHPy150Open espeed/bulbs/bulbs/titan/index.py/Index._get_key_value--crossover with--dataset/ETHPy150Open rapyuta/rce/rce-core/rce/core/network.py/Connection.__init__