deviceClassName

DeviceClassName references a specific DeviceClass, which can define additional configuration and selectors to be inherited by this request. A class is required if no subrequests are specified in the firstAvailable list and no class can be set if subrequests are specified in the firstAvailable list. Which classes are available depends on the cluster. Administrators may use this to restrict which devices may get requested by only installing classes with selectors for permitted devices. If users are free to request anything without restrictions, then administrators can create an empty DeviceClass for users to reference.