How to specify GCP Bucket Name in Studio CLoud

Hi, does anyone know how to specify GCP bucket name using Get Bucket activity? My bucket should be chain_integration_files/blujay/rate
I’m using Studio cloud and I’ve tried these combination:

  1. //chain_integration_files/blujay/rate
  2. chain_integration_files/blujay/rate/objectName
  3. chain_integration_files/blujay/rate/

But none of these are works. I’ve checked my connection too with google cloud storage using my service account key and no issue for connecting.

Thank you