How to use the @alfresco/js-api.QueriesApi function in @alfresco/js-api

*
 * The Alfresco Example Content Application is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with Alfresco. If not, see .
 */

import { RepoApi } from '../repo-api';
import { Utils } from '../../../../utilities/utils';
import { QueriesApi as AdfQueriesApi } from '@alfresco/js-api';

export class QueriesApi extends RepoApi {
  queriesApi = new AdfQueriesApi(this.alfrescoJsApi);

  constructor(username?: string, password?: string) {
      super(username, password);
  }

  async findSites(searchTerm: string) {
    const data = {
        term: searchTerm,
        fields: ['title']
    };

    await this.apiAuth();
    return this.queriesApi.findSites(searchTerm, data);
  }

  async findNodes(searchTerm: string) {