def get_node(self, string_key):
        pos = self.get_node_pos(string_key)
        if pos is None:
            return None
        return self.ring[ self._sorted_keys[pos] ]
Given a string key a corresponding node in the hash ring is returned.
dataset/ETHPy150Open chineking/cola/cola/core/mq/hash_ring.py/HashRing.get_node