gcloud alpha storage hmac create

INFORMATION
gcloud alpha storage hmac create is supported in universe domain universe; however, some of the values used in the help text may not be available. Command examples may not work as-is and may requires changes before execution.
NAME
gcloud alpha storage hmac create - add a service account HMAC
SYNOPSIS
gcloud alpha storage hmac create SERVICE_ACCOUNT [GCLOUD_WIDE_FLAG …]
DESCRIPTION
(ALPHA) gcloud alpha storage hmac create command creates an HMAC key for the specified service account. The secret key material is only available upon creation, so be sure to store the returned secret along with the access_id.
EXAMPLES
To create an HMAC key for test.service.account@test_project.iam.gserviceaccount.com: 
gcloud alpha storage hmac create test.service.account@test_project.iam.gserviceaccount.com
POSITIONAL ARGUMENTS
SERVICE_ACCOUNT
The service account email.
GCLOUD WIDE FLAGS
These flags are available to all commands: --access-token-file, --account, --billing-project, --configuration, --flags-file, --flatten, --format, --help, --impersonate-service-account, --log-http, --project, --quiet, --trace-token, --user-output-enabled, --verbosity.

Run $ gcloud help for details.

NOTES
This command is currently in alpha and might change without notice. If this command fails with API permission errors despite specifying the correct project, you might be trying to access an API with an invitation-only early access allowlist. This variant is also available: 
gcloud storage hmac create