chill-bundles/src/Bundle/ChillDocGeneratorBundle/Resources/public/module/PickTemplate/index.js

import { createApp } from "vue";
import PickTemplate from "ChillDocGeneratorAssets/vuejs/_components/PickTemplate.vue";
import { fetchTemplates } from "ChillDocGeneratorAssets/api/pickTemplate.js";
import { _createI18n } from "ChillMainAssets/vuejs/_js/i18n";

const i18n = _createI18n({});

document.querySelectorAll("div[data-docgen-template-picker]").forEach((el) => {
  fetchTemplates(el.dataset.entityClass).then((templates) => {
    let picker = {
      template:
        '<pick-template :templates="this.templates" :entityId="this.entityId"></pick-template>',
      components: {
        PickTemplate,
      },
      data() {
        return {
          templates: templates,
          entityId: el.dataset.entityId,
        };
      },
    };
    createApp(picker).use(i18n).mount(el);
  });
});