getAnnotationChangeHandler(mPropertyBag) {
			if (!mPropertyBag.changeType) {
				throw new Error("'changeType' property is required!");
			}

			return ChangeHandlerRegistration.getAnnotationChangeHandler(mPropertyBag);
		}
Returns the annotation change handler for the requested change type.

@param {object} mPropertyBag - Property bag
@param {string} mPropertyBag.changeType - Change type for which the change handler should be returned
@returns {Promise<object>} Resolves with the change handler

@private
@ui5-restricted sap.ui.fl, sap.ui.rta