@interface IXPromisedInMemoryDictionarySeed : IXOwnedDataPromiseSeed <NSSecureCoding, NSCopying>

@property (class, readonly) BOOL supportsSecureCoding;

- (void)encodeWithCoder:(id)a0;
- (id)initWithCoder:(id)a0;
- (id)copyWithZone:(struct _NSZone { } *)a0;
- (Class)clientPromiseClass;

@end