System/Library/Frameworks/MessageUI.framework
_MFNSShadow.h
@class NSShadow;
@interface _MFNSShadow : NSObject <NSSecureCoding>
@property (class, readonly) BOOL supportsSecureCoding;
@property (retain, nonatomic) NSShadow *shadow;
- (void)encodeWithCoder:(id)a0;
- (id)initWithShadow:(id)a0;
- (void).cxx_destruct;
- (id)initWithCoder:(id)a0;
@end