static mergeConfigObjects(destination, updates, template) {
    const overrides = {
      '.drm.keySystemsMapping': '',
      '.drm.servers': '',
      '.drm.clearKeys': '',
      '.drm.advanced': {
        distinctiveIdentifierRequired: false,
        persistentStateRequired: false,
        videoRobustness: [],
        audioRobustness: [],
        sessionType: '',
        serverCertificate: new Uint8Array(0),
        serverCertificateUri: '',
        individualizationServer: '',
        headers: {},
      },
    };
    return shaka.util.ConfigUtils.mergeConfigObjects(
        destination, updates,
        template || shaka.util.PlayerConfiguration.createDefault(), overrides,
        '');
  }
Merges the given configuration changes into the given destination.  This
uses the default Player configurations as the template.

@param {shaka.extern.PlayerConfiguration} destination
@param {!Object} updates
@param {shaka.extern.PlayerConfiguration=} template
@return {boolean}
@export