func (i *Incarnation) CreatedOn() time.Time {
	r := time.Time{}
	if i.revision != nil {
		r = i.revision.GitTimestamp()
	}
	return r
}
/* Implement garbagecollectors Revision interface
CreatedOn returns the incarnations git timestamp
package releasemanager
import (
	"context"
	"fmt"
	"k8s.io/apimachinery/pkg/api/errors"
	"time"
	picchu "go.medium.engineering/picchu/pkg/apis/picchu/v1alpha1"
	"go.medium.engineering/picchu/pkg/controller/releasemanager/garbagecollector"
	"sigs.k8s.io/controller-runtime/pkg/client"
	"github.com/go-logr/logr"
)