Does ORAS support pushing an image index application/vnd.oci.image.index.v1+json that contains multiple application/vnd.oci.image.manifest.v1+json?
See https://github.com/opencontainers/image-spec/blob/master/media-types.md#oci-image-media-types
and https://github.com/opencontainers/image-spec/blob/master/image-index.md