Const
This command shall be generated in response to the KeySetRead command, if a valid Group Key Set was found. It shall contain the configuration of the requested Group Key Set, with the EpochKey0, EpochKey1 and EpochKey2 key contents replaced by null.
MatterSpecification.v13.Core § 11.2.7.3
This command shall be generated in response to the KeySetRead command, if a valid Group Key Set was found. It shall contain the configuration of the requested Group Key Set, with the EpochKey0, EpochKey1 and EpochKey2 key contents replaced by null.