Can't list studies in a project as expected with new Vertex AI Vizier Study class in version 1.16.1

[jasonbrancazio]

Because my Jupyter notebook (Vertex AI Workbench, user-managed) displayed list when I used the tab key after a period to inspect methods of the Study class, I naively expected Study.list() to list all Vizier studies in a project, but it hits an error:

from google.cloud import aiplatform
from google.cloud.aiplatform.vizier import Study
aiplatform.init(project='MY-PROJECT',location='us-central1')
Study.list()

The error I receive is ValueError: Unknown field for ListStudiesRequest: filter

The list() method is apparently being inherited from the base.VertexAiResourceNounWithFutureManager class.

The Study class refers to a _list_method, but it doesn't seem to be implemented implemented.

[jaycee-li]

Hi @jasonbrancazio

Thanks for letting us know this issue. Currently Vizer uses the high level list method, which includes the field filter in the request message by default. But ListStudiesRequest doesn't have such a field. I'll fix it soon.