Is there any sample/example to update worker data in VBCS

Summary:

Looking for a sample/example where worker data is updated in VBCS page.

Content (please ensure you mask any confidential information):

We are trying to build a page where employees can certify their information and that certification date is stored in a Person DFF field.

Hence looking for an example where worker data is updated in VBCS using patch method.

Version (include the version you are using, if applicable):

23D

Code Snippet (add any code snippets that support your topic, if applicable):