'(123) 456-7890');

      const phoneExt = form.getTextField(fieldNames.PhoneExt);
      phoneExt.setText('1');

      const signatureDate = form.getTextField(fieldNames.SignatureDate);
      signatureDate.setText(['2020', '07', '13'].join(''));

      // Fill in remaining fields with random numeric values
      const fieldNameValues = values(fieldNames);
      const fields = form.getFields();
      fields.forEach((field) => {
        if (!fieldNameValues.includes(field.getName())) {
          if (field ins