A convenience module for importing ContentElement classes when developing with TypeScript. For example, rather than importing content elements one at a time like this:

import Text = require("esri/support/ContentElement/Text");
import Media = require("esri/support/ContentElement/Media");
import Fields = require("esri/support/ContentElement/Fields");
import Attachments = require("esri/support/ContentElement/Attachments");

You can use this module to import them on a single line:

import { Text, Media, Fields, Attachments } from "esri/support/ContentElement";

This module also allows you to implement type guards on the content elements, making your code smarter.

import { ContentElement } from "esri/support/ContentElement";

function logContentElement(contentElement: ContentElement): void {
  if (contentElement.type === "media") {
    console.log("Content type is media");
  }
  else {
    // The compiler knows the content element must be `text | fields | media | attachment`
    console.log("The value is not a valid popup content element.")
  }
}