IssueTracker

Please provide as much information as possible. At least, this should include a description of your issue and steps to reproduce the problem. If possible please provide a summary of what steps or workarounds you have already tried, and any docs or articles you found (un)helpful.

Problem you have encountered:
It does not have an endpoint or a return that guarantees that the image was indexed when creating the image reference.
The documentation at least in python is old with deprecated code! You should be more careful with new APIs...

What you expected to happen:
I hope to have an endpoint or an exact time so that I can know that that set of images I sent was successfully indexed. Because just knowing the index time is no use. Because the index time even updating, I have to wait a couple of times for the index time to be updated.

Steps to reproduce:
curl -X POST \
-H "Authorization: Bearer $(gcloud auth application-default print-access-token)" \
-H "Content-Type: application/json" \
https://vision.googleapis.com/v1/projects/project-id/locations/location-id/products/product-id/referenceImages -d '{
  'uri': 'gs://bucket/path/to/red-shoe.jpg'
}

Other information (workarounds you have tried, documentation consulted, etc):
https://cloud.google.com/vision/product-search/docs/create-reference-images