test with all encoders

src/structs/ContentEmbed.js

@@ -1,6 +1,6 @@
 
 import {
-  AbstractUpdateDecoder, AbstractUpdateEncoder, StructStore, Item, Transaction // eslint-disable-line
+  UpdateDecoderV1, UpdateDecoderV2, UpdateEncoderV1, UpdateEncoderV2, StructStore, Item, Transaction // eslint-disable-line
 } from '../internals.js'
 
 import * as error from 'lib0/error.js'
@@ -74,7 +74,7 @@ export class ContentEmbed {
    */
   gc (store) {}
   /**
-   * @param {AbstractUpdateEncoder} encoder
+   * @param {UpdateEncoderV1 | UpdateEncoderV2} encoder
    * @param {number} offset
    */
   write (encoder, offset) {
@@ -92,7 +92,7 @@ export class ContentEmbed {
 /**
  * @private
  *
- * @param {AbstractUpdateDecoder} decoder
+ * @param {UpdateDecoderV1 | UpdateDecoderV2} decoder
  * @return {ContentEmbed}
  */
 export const readContentEmbed = decoder => new ContentEmbed(decoder.readJSON())