How to use the yoti.DynamicScenarioBuilder function in yoti

.build();

  const emailAddressWantedAttribute = new Yoti.WantedAttributeBuilder()
    .withName('email_address')
    .build();

  const dynamicPolicy = new Yoti.DynamicPolicyBuilder()
    .withWantedAttribute(givenNamesWantedAttribute)
    .withWantedAttribute(emailAddressWantedAttribute)
    .withFullName(constraints)
    .withSelfie()
    .withPhoneNumber()
    .withAgeOver(18)
    .build();

  const dynamicScenario = new Yoti.DynamicScenarioBuilder()
    .withCallbackEndpoint('/profile')
    .withPolicy(dynamicPolicy)
    .withExtension(locationExtension)
    .build();

  yotiClient.createShareUrl(dynamicScenario)
    .then((shareUrlResult) => {
      res.render('pages/dynamic-share', {
        yotiClientSdkId: config.CLIENT_SDK_ID,
        yotiShareUrl: shareUrlResult.getShareUrl(),
      });
    }).catch((error) => {
      console.error(error.message);
    });
});

router.get('/dynamic-share', (req, res) => {
  const dynamicPolicy = new Yoti.DynamicPolicyBuilder()
    .withFullName()
    .build();

  const dynamicScenario = new Yoti.DynamicScenarioBuilder()
    .withCallbackEndpoint('/profile')
    .withPolicy(dynamicPolicy)
    .build();

  yotiClient.createShareUrl(dynamicScenario)
    .then((shareUrlResult) => {
      const qrUrl = shareUrlResult.getShareUrl();
      res.render('pages/dynamic-share', {
        yotiApplicationId: config.APPLICATION_ID,
        yotiScenarioId: config.SCENARIO_ID,
        yotiQrUrl: qrUrl,
      });
    }).catch((error) => {
      console.error(error.message);
    });
});