docs: private static boolean isBinary(InputStream in) {
          try {
              int size = in.available();
              if (size > 1024) size = 1024;
              byte[] data = new byte[size];
              in.read(data);
              in.close();
  
              int ascii = 0;
              int other = 0;
  
              for (int i = 0; i < data.length; i++) {
                  byte b = data[i];
                  if (b < 0x09) return true;
  
                  if (b == 0x09 || b == 0x0A || b == 0x0C || b == 0x0D) ascii++;
                  else if (b >= 0x20 && b <= 0x7E) ascii++;
                  else other++;
              }
  
              return other != 0 && 100 * other / (ascii + other) > 95;
  
          } catch (IOException e) {
              throw E.ioException(e);
          }
      }