How can I update Incident Event Information using the REST API?

Summary:

I've developed a custom application for our company to interact with Incident Information via the REST API. While I'm able to update fields such as summary, date, and owner, I'm currently unable to update more specific fields like Ill or Injured Person Details, Witness Details, and Stakeholders for incidents categorized under the "Accidents or Injuries" event type. Can Someone provide a code snippet or a guide on updating these fields

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Content (please ensure you mask any confidential information):

The API endpoint I'm using is:
/hcmRestApi/resources/11.13.18.05/incidentKiosks/{IncidentId}/child/IncidentDetailKiosk/{IncidentDetailId}
However, this endpoint does not expose the fields I need to modify.