ExtensibleOnly creates a factory that produces a MutableCluster when the user selects features.
We define clusters this way if the Matter specification defines a cluster with a set of features, one of which is
required, but none of which is required if others are enabled.
ExtensibleOnly creates a factory that produces a MutableCluster when the user selects features.
We define clusters this way if the Matter specification defines a cluster with a set of features, one of which is required, but none of which is required if others are enabled.