declare module 'ember-testing/lib/adapters/adapter' {
    import EmberObject from "@ember/object";
    /**
     @module @ember/test
    */
    /**
      The primary purpose of this class is to create hooks that can be implemented
      by an adapter for various test frameworks.

      @class TestAdapter
      @public
    */
    interface Adapter extends EmberObject {
        asyncStart(): void;
        asyncEnd(): void;
        exception(error: unknown): never;
    }
    const Adapter: Readonly<typeof EmberObject> & (new (owner?: import("@ember/owner").default) => EmberObject) & {
        /**
          This callback will be called whenever an async operation is about to start.
      
          Override this to call your framework's methods that handle async
          operations.
      
          @public
          @method asyncStart
        */
        asyncStart(): void;
        /**
          This callback will be called whenever an async operation has completed.
      
          @public
          @method asyncEnd
        */
        asyncEnd(): void;
        /**
          Override this method with your testing framework's false assertion.
          This function is called whenever an exception occurs causing the testing
          promise to fail.
      
          QUnit example:
      
          ```javascript
            exception: function(error) {
              ok(false, error);
            };
          ```
      
          @public
          @method exception
          @param {String} error The exception to be raised.
        */
        exception(error: unknown): never;
    };
    export default Adapter;
}