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- /**
- * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
- * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
- */
- /**
- * @module utils/spy
- */
- /**
- * Creates a spy function (ala Sinon.js) that can be used to inspect call to it.
- *
- * The following are the present features:
- *
- * * spy.called: property set to `true` if the function has been called at least once.
- *
- * @returns {Function} The spy function.
- */
- function spy() {
- return function spy() {
- spy.called = true;
- };
- }
- export default spy;
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