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在特征值中，iam发送一个值，i需要生成一个随机值，以US +随机数开始，我们如何才能从特征文件中获取值```然后使用以下内容更新部分标识符部分json“””{ 'ISIN'：'US 1525469866'，'VALOR'：'A123500' }“””

@Then("update section Identifiers section  with following json")
  public void updateSectionIdentifiersSectionWithFollowingJson(String json) {
    PageAddInvest PageObjectsFundEligibilityIdentiferAddReInvestleg = new PageAddInvest (Objects.requireNonNull(seleniumCore.getWebDriver()));
    FI objectIdentifiersFromFeatureFile = parserService.jsonToObject(json, FundIdentifier.class);
    boolean b = PageObjectsFundEligibilityIdentiferAddReInvestleg.updateSectionFields(objectIdentifiersFromFeatureFile);
    Assert.assertTrue("Update for the Identifiers  details section failed", b);
  }

 @Override
  public boolean updateSectionFields(DataObject dataObject) {
    boolean flag = false;
    FI  objFundName = (FundIdentifier) dataObject;
    try {
      if (ISIN.isEnabled()) {
        flag = Update(ISIN, objFundName.getISIN());
      }
      if (VALOR.isEnabled()) {
        flag = UpdateFieldValues(VALOR, objFundName.getVALOR());
      }
    } catch (Exception e) {
      log.error(String.valueOf(e));
    }
    return flag;

  }

    public boolean Update(WebElement ele, String valueToField) {
        boolean flag = false;
        try {
            if (element.getAttribute(VALUE).length() <= 0) // Enter value If field value is empty
            {
                ele.sendKeys(valueToField);
                ele.click();
                ele
t.sendKeys(Keys.ENTER);

            } else {
                ele.clear();// If any  field already has value ,clear the value and enter the new value from feature file
                ele.sendKeys(valueToField);
            }

            flag = true;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return flag;
    }


to generate a new method for generating random number