applyChange(oManifest, oChange) {
			/* logic for changemerger */
			var oChangedCard = oChange.getContent();
			var bIsOperationValid = oChangedCard.entityPropertyChange.operation === "UPSERT";
			var oOldCards = oManifest["sap.ovp"].cards;
			var oPropertyChange = oChangedCard.entityPropertyChange;
			if (Array.isArray(oPropertyChange)) {
				throw Error("Expected value for oPropertyChange was an object");
			}
			if (!bIsOperationValid) {
				throw Error("This Operation is not supported");
			}
			if (oChangedCard.cardId in oOldCards && "propertyPath" in oPropertyChange) {
				ObjectPath.set([oChangedCard.cardId, oPropertyChange.propertyPath], oPropertyChange.propertyValue, oOldCards);
			} else {
				throw Error("Change card settings was not found");
			}
			return oManifest;
		}
Method to apply the <code>appdescr_app_changeCard</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 {string} oChange.content.cardId - ID of card being changed
@param {object} oChange.content.entityPropertyChange - Change content
@param {string} oChange.content.entityPropertyChange.propertyPath - Path to the property which should be changed
@param {string} oChange.content.entityPropertyChange.operation - Operation that is performed on property defined under propertyPath. Possible value: <code>UPSERT</code>
@param {object} oChange.content.entityPropertyChange.propertyValue - New value of <code>dataSource</code> property defined under propertyPath
@returns {object} Updated manifest
@private
@ui5-restricted sap.ui.fl.apply._internal