applyChange(oManifest, oChange) {
			/* logic for changemerger */
			var oNewCard = oChange.getContent();
			var oOldCards = oManifest["sap.ovp"].cards;
			if ("card" in oNewCard && Object.keys(oNewCard.card).length > 0 && !(Object.keys(oNewCard.card) in oOldCards)) {
				Object.assign(oOldCards, oNewCard.card);
			} else {
				throw Error("No new card found");
			}
			return oManifest;
		}
Method to apply the <code>appdescr_ovp_addNewCard</code> change to the manifest.
@param {object} oManifest - Original manifest
@param {sap.ui.fl.apply._internal.flexObjects.AppDescriptorChange} oChange - Change made by key user
@param {object} oChange.content - Details of the change
@param {object} oChange.content.card - New card created by Key user
@returns {object} Updated manifest
@private
@ui5-restricted sap.ui.fl.apply._internal