@class HMDDevice, NSNumber, NSDate; @interface HMDUserManagementOperationTimestamp : HMFObject <NSSecureCoding> @property (class, readonly) BOOL supportsSecureCoding; @property (readonly) HMDDevice *device; @property (readonly) NSDate *timestamp; @property (readonly) NSNumber *state; - (id)shortDescription; - (void)encodeWithCoder:(id)a0; - (void).cxx_destruct; - (id)attributeDescriptions; - (BOOL)isEqual:(id)a0; - (id)initWithCoder:(id)a0; - (id)initWithDevice:(id)a0 state:(unsigned long long)a1; @end