function destroyClones(aClones) {
		for (let i = 0; i < aClones.length; i++) {
			if (aClones[i] != null && !aClones[i].bIsDestroyed) {
				aClones[i].destroy();
			}
		}
	}
Returns a template clone. It either finds an unused clone or clones a new one from the template.

@param {int} iIndex Index of the column in the columns aggregation of the table
@returns {sap.ui.core.Control|null} Clone of the template, or <code>null</code> if no template is defined
@protected