As the title says，When I create a Vertex AI dataset with REST API, a metadata schema yaml file is required, how do I write the content? Can you write an example for me? Thank you very much.

When I use the REST API to create a Vertex AI Dataset, the type of the dataset is tabular data. There is a problemType required in the request body, but there is no tabular type. How should I set it?Types in the document below：Required. Problem type ...