code: def reset(self, force):
          
          client = self.create_client()
          bucket = client.lookup_bucket(self.bucket_name)
          if bucket is not None:
              if not force:
                  self._log.error("Bucket already exists, aborting.")
                  raise ExistingBackendError
              self._log.info("Bucket already exists, deleting all content.")
              for blob in bucket.list_blobs():
                  self._log.info("Deleting %s ..." % blob.name)
                  bucket.delete_blob(blob.name)
          else:
              client.create_bucket(self.bucket_name)
docs: Connect to the assigned bucket or create if needed. Clear all the blobs inside.