var google.golang.org/grpc/internal/transport.clientPreface

6 uses

	google.golang.org/grpc/internal/transport (current package)
		http2_client.go#L422: 	n, err := t.conn.Write(clientPreface)
		http2_client.go#L427: 	if n != len(clientPreface) {
		http2_client.go#L428: 		err = connectionErrorf(true, nil, "transport: preface mismatch, wrote %d bytes; want %d", n, len(clientPreface))
		http2_server.go#L309: 	preface := make([]byte, len(clientPreface))
		http2_server.go#L321: 	if !bytes.Equal(preface, clientPreface) {
		http_util.go#L50: 	clientPreface   = []byte(http2.ClientPreface)