The Generated annotation is used to mark source code that has been generated. It can also be used to differentiate user written code from generated code in a single file.
Date when the source was generated. The date element must follow the ISO 8601 standard. For example the date element would have the following value 2017-07-04T12:08:56.235-0700 which represents 2017-07-04 12:08:56 local time in the U.S. Pacific Time time zone.