This command shall set the TrustedTimeSource attribute. Upon receipt of this command, * If the
TrustedTimeSource field in the command is null, the node shall set the TrustedTimeSource attribute to null
and shall generate a MissingTrustedTimeSource event. * Otherwise, the node shall set the TrustedTimeSource
attribute to a struct which has NodeID and Endpoint fields matching those in the TrustedTimeSource field and
has its FabricIndex field set to the command’s accessing fabric index.
This command shall set the TrustedTimeSource attribute. Upon receipt of this command, * If the TrustedTimeSource field in the command is null, the node shall set the TrustedTimeSource attribute to null and shall generate a MissingTrustedTimeSource event. * Otherwise, the node shall set the TrustedTimeSource attribute to a struct which has NodeID and Endpoint fields matching those in the TrustedTimeSource field and has its FabricIndex field set to the command’s accessing fabric index.