```
@SdkPublicApi
@Target(METHOD)
@Retention(RUNTIME)
public @interface DynamoDbAutoGeneratedTimestampAttribute
```
Denotes this attribute as recording the auto generated last updated timestamp for the record. Every time a record with this attribute is written to the database it will update the attribute with current timestamp when its updated.
Note: This annotation must not be applied to fields whose names contain the reserved marker "_NESTED_ATTR_UPDATE_". This marker is used internally by the Enhanced Client to represent flattened paths for nested attribute updates. If a field name contains this marker, an IllegalArgumentException will be thrown during schema registration.

Annotation Type DynamoDbAutoGeneratedTimestampAttribute