code: function ConversionHint(conversion, arg) {
      this.status = conversion.status;
      this.message = conversion.message;
      if (arg) {
          this.start = arg.start;
          this.end = arg.end;
      }
      else {
          this.start = 0;
          this.end = 0;
      }
      this.predictions = conversion.predictions;
  }
docs: A Hint that arose as a result of a Conversion