docs: private static boolean wrapWithByteCounting(InputStream in) {
          if (!AwsSdkMetrics.isMetricsEnabled()) {
              return false;   // metrics is disabled
          }
          if (in instanceof MetricAware) {
              MetricAware aware = (MetricAware) in;
              // wrap only if not already wrapped in one of it's inner chain of input stream
              return !aware.isMetricActivated();
          }
          return true; // this is a raw input stream so metric wrapping is necessary
      }