@class NSArray, NSString; @interface EMMessageChangeAction : NSObject <NSSecureCoding, EFPubliclyDescribable> @property (class, readonly) BOOL supportsSecureCoding; @property (nonatomic) long long origin; @property (nonatomic) long long actor; @property (readonly, copy, nonatomic) NSArray *objectIDs; @property (readonly, nonatomic) long long signpostType; @property (readonly, copy, nonatomic) NSString *ef_publicDescription; @property (readonly) unsigned long long hash; @property (readonly) Class superclass; @property (readonly, copy) NSString *description; @property (readonly, copy) NSString *debugDescription; - (void)encodeWithCoder:(id)a0; - (void).cxx_destruct; - (id)initWithCoder:(id)a0; - (id)initWithObjectIDs:(id)a0 origin:(long long)a1 actor:(long long)a2; - (id)initWithMessageListItems:(id)a0 origin:(long long)a1 actor:(long long)a2; @end