docs: public static CloudTraceContext toCloudTraceContext(SpanContext spanContext) {
      checkNotNull(spanContext, "spanContext");
  
      ByteBuffer traceIdBuf = ByteBuffer.wrap(spanContext.getTraceId().getBytes());
      TraceIdProto traceIdProto =
          TraceIdProto.newBuilder().setHi(traceIdBuf.getLong()).setLo(traceIdBuf.getLong()).build();
      ByteBuffer spanIdBuf = ByteBuffer.wrap(spanContext.getSpanId().getBytes());
  
      return new CloudTraceContext(
          traceIdProto.toByteArray(),
          spanIdBuf.getLong(),
          spanContext.getTraceOptions().isSampled() ? 1L : 0L);
    }