Creates a dataset with the source schema and an empty Storage artifact.
The copy starts with zero rows and no content hash. Copy content to Storage separately.
The source dataset must belong to the current project.
The project can contain up to 200 datasets.
Names must be unique by exact spelling in the project. Letter case matters.
If name is missing or blank, the API adds (copy) to the source name and truncates it to 255 characters.
If testCaseId is set, that case must already link to the source dataset.
The response lists no linked cases even when testCaseId repoints a binding.
Requires the TestCase:Update permission.