/**
 * @license
 * Copyright 2020 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

declare class A {
  /** a */
  a: string;
  /**
   * b1 first line
   *
   * b1 second line
   *
   * @param b1 b1 param
   * @returns b1 return
   */
  b(b1: string): string;
  /**
   * b2 first line
   *
   * b2 second line
   *
   * @param b2 b2 param
   * @returns b2 return
   */
  b(b2: string): string;
}
export class B extends A {}
export {};