docs: protected long parseLong( String value ) {
          long factor = 1;
          if (value.endsWith("K")) {
              factor = KILO;
          } else if (value.endsWith("M")) {
              factor = MEGA;
          } else if (value.endsWith("G")) {
              factor = GIGA;
          }
          if (factor > 1) {
              value = value.substring(0, value.length() - 1);
          }
          return new BigInteger(value).longValue() * factor;
      }