ember-horizon/addon/serializers/horizon.js

An Ember service for managing a Horizon connection and an adapter to request data from that connection.

import JSONSerializer from 'ember-data/serializers/json';

export default JSONSerializer.extend({
  /**
   * @override
   */
  _shouldSerializeHasMany(snapshot, key) {
    return this._canSerialize(key);
  }
});