a path-bug in a demo in the json_normalize function

demo json_normalize

args = (
            [["State", "Name"]],
            [
                "InstanceId", "VpcId", "PublicIpAddress", "PrivateIpAddress",
                "PublicDnsName", "PrivateDnsName", "ImageId", "SubnetId",
                "KeyName", "InstanceType", "LaunchTime",
                ["State", "Name"]
            ]
        )

clean = lambda data: pd.io.json.json_normalize(data, *args, errors='ignore')

ec2 = boto3.client('ec2')
i, r = "Instances", "Reservations"
instances = [reserv[i][-1] for reserv in ec2.describe_instances()[r] if i in reserv]

data = [clean(inst) for inst in instances]
results_table = pd.concat(data)
unique_records_table = results_table.drop_duplicates("InstanceId")

sample results

unique_records_table
    0           InstanceId         VpcId PublicIpAddress    ...                  KeyName InstanceType                LaunchTime State.Name
0   r  i-08071c704a45c09af  vpc-c4e93fa1             NaN    ...      key-name-name-of-it    t2.medium 2019-01-23 12:01:21+00:00    running
0   r           i-c5707433  vpc-c4e93fa1   12.23.345.567    ...      key-name-name-of-it     t2.small 2015-06-17 01:29:14+00:00    running
0   r  i-05a817254f1f0bf3a  vpc-c4e93fa1             NaN    ...      key-name-name-of-it    t2.medium 2018-09-04 15:38:35+00:00    running
0   r           i-262f46e3  vpc-c4e93fa1   12.23.345.567    ...      key-name-name-of-it     t2.small 2015-08-26 17:57:54+00:00    running
0   r  i-04ae135070a1ae6c3  vpc-c4e93fa1             NaN    ...      key-name-name-of-it     t2.small 2019-01-23 12:01:21+00:00    running
0   r  i-0a3ba15d3ba74903b  vpc-c4e93fa1             NaN    ...      key-name-name-of-it    t2.medium 2018-03-12 18:15:34+00:00    running
0   s           i-83356d46  vpc-c4e93fa1             NaN    ...      key-name-name-of-it     t2.small 2015-09-11 17:30:31+00:00    stopped
0   r  i-070045e7be71e5268  vpc-c4e93fa1             NaN    ...      key-name-name-of-it    t2.medium 2018-07-17 17:03:11+00:00    running
0   r  i-0e0ce3b7ad6429af9  vpc-c4e93fa1             NaN    ...      key-name-name-of-it     t2.micro 2018-08-31 16:21:39+00:00    running
0   r  i-0ae87df89b65c2943  vpc-c4e93fa1             NaN    ...      key-name-name-of-it     t2.small 2018-02-28 21:01:21+00:00    running
0   r  i-0c8321aee91358c40  vpc-c4e93fa1             NaN    ...      key-name-name-of-it    t2.medium 2018-11-11 02:03:50+00:00    running
...