@Override
            public void set(AttributeValue o, String value) {
                o.setN(value);
            }
For the V2 compatible schema we save as a numeric attribute value unless overridden by {@link
DynamoDBNativeBoolean} or {@link DynamoDBTyped}.
aws-java-sdk-dynamodb/src/main/java/com/amazonaws/services/dynamodbv2/datamodeling/StandardModelFactories.java