public function multiSet($fieldValueArr): bool
    {
        return $this->redis->hmset($this->key, $this->serializeArray($fieldValueArr));
    }
public function multiSet($fieldValueArr): bool
    {
        return $this->redis->hmset($this->key, $this->serializeArray($fieldValueArr));
    }
@param mixed[] $fieldValueArr An associative array looking like [ int|string field => mixed value, ...]

@return bool