func (remote *Fake) Fetch() ([]reg.Manifest, error) {
	return remote.manifests, nil
}
Fetch just returns the manifests that were set in NewFakeRemoteManifest.
package remotemanifest
import (
	reg "sigs.k8s.io/promo-tools/v3/legacy/dockerregistry"
)
type Fake struct {
	manifests []reg.Manifest
}