@class CNGroup; @interface CNChangeHistoryAddSubgroupToGroupEvent : CNChangeHistoryEvent @property (readonly, nonatomic) CNGroup *subgroup; @property (readonly, nonatomic) CNGroup *group; + (BOOL)supportsSecureCoding; + (unsigned long long)instanceSortOrder; - (id)init; - (unsigned long long)hash; - (void)encodeWithCoder:(id)a0; - (id)description; - (void).cxx_destruct; - (BOOL)isEqual:(id)a0; - (id)initWithCoder:(id)a0; - (void)acceptEventVisitor:(id)a0; - (long long)comparisonResultWithinSameClass:(id)a0; - (id)initWithSubgroup:(id)a0 group:(id)a1; @end