core "github.com/envoyproxy/go-control-plane/envoy/config/core/v3"
	"sigs.k8s.io/yaml"

	"istio.io/istio/pkg/util/protomarshal"
)

const typeURLPrefix = "type.googleapis.com/"

func (c *ConfigWriter) PrintEcds(outputFormat string) error {
	if c.configDump == nil {
		return fmt.Errorf("config writer has not been primed")
	}

	dump, err := c.configDump.GetEcdsConfigDump()
	if err != nil {
		return err
	}