text: /*!
   * Copyright 2018 Google Inc. All Rights Reserved.
   *
   * 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.
   */
  'use strict';
  Object.defineProperty(exports, "__esModule", { value: true });
  /**
   * Generate a unique client-side identifier.
   *
   * Used for the creation of new documents.
   *
   * @private
   * @returns {string} A unique 20-character wide identifier.
   */
  function autoId() {
      const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
      let autoId = '';
      for (let i = 0; i < 20; i++) {
          autoId += chars.charAt(Math.floor(Math.random() * chars.length));
      }
      return autoId;
  }
  exports.autoId = autoId;
  /**
   * Generate a short and semi-random client-side identifier.
   *
   * Used for the creation of request tags.
   *
   * @private
   * @returns {string} A random 5-character wide identifier.
   */
  function requestTag() {
      return autoId().substr(0, 5);
  }
  exports.requestTag = requestTag;
  