public function fieldLength($field, bool $serialized = true): int
    {
        if ($serialized) {
            return $this->redis->hstrlen($this->key, $field);
        }

        $val = $this->get($field);
        if ($val === null) {
            return 0;
        }

        return \strlen($val);
    }
public function fieldLength($field, bool $serialized = true): int
    {
        if ($serialized) {
            return $this->redis->hstrlen($this->key, $field);
        }

        $val = $this->get($field);
        if ($val === null) {
            return 0;
        }

        return \strlen($val);
    }
@param int|string $field                              Selected field that will be measured.
@param bool       $serialized                         True: Measure the internal serialized string.
False: Unserialize the value and then measure.
Note: Zero will be returned upon non-existent field or key.

@return int Length of content in $field.