text: import Credit from './Credit.js';
  import defined from './defined.js';
  
      /**
       * @exports MapboxApi
       */
      var MapboxApi = {};
  
      /**
       * The default Mapbox API access token to use if one is not provided to the
       * constructor of an object that uses the Mapbox API.  If this property is undefined,
       * Cesium's default access token is used, which is only suitable for use early in development.
       * Please supply your own access token as soon as possible and prior to deployment.
       * Visit {@link https://www.mapbox.com/help/create-api-access-token/} for details.
       * When Cesium's default access token is used, a message is printed to the console the first
       * time the Mapbox API is used.
       *
       * @type {String}
       */
      MapboxApi.defaultAccessToken = undefined;
  
      var printedMapboxWarning = false;
      var errorCredit;
      var errorString = '<b>This application is using Cesium\'s default Mapbox access token.  Please create a new access token for the application as soon as possible and prior to deployment by visiting <a href=https://www.mapbox.com/account/apps/>https://www.mapbox.com/account/apps/</a>, and provide your token to Cesium by setting the Cesium.MapboxApi.defaultAccessToken property before constructing the CesiumWidget or any other object that uses the Mapbox API.</b>';
  
      MapboxApi.getAccessToken = function(providedToken) {
          if (defined(providedToken)) {
              return providedToken;
          }
  
          if (!defined(MapboxApi.defaultAccessToken)) {
              if (!printedMapboxWarning) {
                  console.log(errorString);
                  printedMapboxWarning = true;
              }
              return 'pk.eyJ1IjoiYW5hbHl0aWNhbGdyYXBoaWNzIiwiYSI6ImNpd204Zm4wejAwNzYyeW5uNjYyZmFwdWEifQ.7i-VIZZWX8pd1bTfxIVj9g';
          }
  
          return MapboxApi.defaultAccessToken;
      };
  
      MapboxApi.getErrorCredit = function(providedToken) {
          if (defined(providedToken) || defined(MapboxApi.defaultAccessToken)) {
              return undefined;
          }
  
          if (!defined(errorCredit)) {
              errorCredit = new Credit(errorString, true);
          }
  
          return errorCredit;
      };
  export default MapboxApi;
  