code to add integer data in 'id' column in dynamodb table "person"

import boto3
import decimal

# Helper class to convert a DynamoDB item to JSON.
class DecimalEncoder(json.JSONEncoder):
    def default(self, o):
        if isinstance(o, decimal.Decimal):
            if o % 1 > 0:
                return float(o)
            else:
                return int(o)
        return super(DecimalEncoder, self).default(o)

dynamodb = boto3.resource('dynamodb', region_name='us-east-1')

table = dynamodb.Table('person')
response = table.scan()

total = 0
for i in response['Items']:
    total = total + i['id']
    
print(total)