text: import freezeObject from '../Core/freezeObject.js';
  
      /**
       * An enum identifying the type of request. Used for finer grained logging and priority sorting.
       *
       * @exports RequestType
       */
      var RequestType = {
          /**
           * Terrain request.
           *
           * @type Number
           * @constant
           */
          TERRAIN : 0,
  
          /**
           * Imagery request.
           *
           * @type Number
           * @constant
           */
          IMAGERY : 1,
  
          /**
           * 3D Tiles request.
           *
           * @type Number
           * @constant
           */
          TILES3D : 2,
  
          /**
           * Other request.
           *
           * @type Number
           * @constant
           */
          OTHER : 3
      };
  export default freezeObject(RequestType);
  