isSetDefaultChange = (oFlexObject) => {
		return oFlexObject?.isA(sUpdatableChangeNameSpace)
			&& oFlexObject.getFileType() === "change"
			&& oFlexObject.getChangeType() === "defaultVariant";
	}
Handler class provide data of smart control variant changes and its map.

@namespace sap.ui.fl.apply._internal.flexState.compVariants.CompVariantManagementState
@since 1.129
@version ${version}
@private
@ui5-restricted