package only available for one arch

Use this example https://github.com/bazel-contrib/rules_distroless/blob/main/examples/debian_snapshot/bullseye.yaml

If one of the packages is only available for amd64, when running lock, it will complain the said package is not available for arm64. How can I write the yaml file to tell this package is only for amd64?

Start with examples/debian_snapshot/bullseye.yaml and trace the lock operation described in the issue. Determine how package availability is selected for arm64 and amd64, then verify that the YAML can express an amd64-only package without producing the arm64 error.

Written by the indexing model from the issue text.