docs: public static String charset(final String encoding)
      {
          final String charsetName = STD_CHARSETS.get(encoding);
          if (charsetName != null)
          {
              return "java.nio.charset.StandardCharsets." + charsetName;
          }
          else
          {
              return "java.nio.charset.Charset.forName(\"" + encoding + "\")";
          }
      }