use Generated IDFor Upload Category
A constant to specify to use the generated entity ID for a created entity or media entity as the upload category for the request.
Using the generated entity ID as an upload category is ideal for cases where requests for a new entity need to be grouped into an upload category but there is no other pre-defined upload category.
Using the generated entity ID as an upload category is also ideal for cases where a graph of related entities (for example, a parent-child hierarchy) needs to be grouped into an upload category and the entity ID of the to be created root is the ideal choice for the upload category.
Note: This can be used in a change set and subsequent requests in the change set can reference the created entity (by EntityValue) to also be grouped in the same upload category.