@class ECMessageFlagChange; @interface EMMessageFlagChangeAction : EMMessageChangeAction @property (readonly, nonatomic) ECMessageFlagChange *flagChange; + (BOOL)supportsSecureCoding; - (void)encodeWithCoder:(id)a0; - (long long)signpostType; - (void).cxx_destruct; - (id)initWithCoder:(id)a0; - (id)initWithMessageListItems:(id)a0 origin:(long long)a1 actor:(long long)a2 flagChange:(id)a3; - (id)initWithObjectIDs:(id)a0 origin:(long long)a1 actor:(long long)a2 flagChange:(id)a3; @end