Imports github.com/jetstack/cert-manager/pkg/apis/certmanager/v1alpha1 k8s.io/apimachinery/pkg/apis/meta/v1 k8s.io/apimachinery/pkg/types k8s.io/apimachinery/pkg/watch k8s.io/client-go/rest knative.dev/serving/pkg/client/certmanager/clientset/versioned/scheme Standard library imports time