google.golang.org/grpc/credentials/alts/internal/proto/grpc_gcp.Endpoint.XXX_Marshal (method)

one use

	google.golang.org/grpc/credentials/alts/internal/proto/grpc_gcp (current package)
		handshaker.pb.go#L109: func (m *Endpoint) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {