System/Library/PrivateFrameworks/Email.framework
EMMessageHeaders.h
@class NSDictionary, NSArray;
@interface EMMessageHeaders : NSObject <NSSecureCoding>
@property (class, readonly) BOOL supportsSecureCoding;
@property (copy, nonatomic) NSDictionary *headers;
@property (readonly, copy, nonatomic) NSArray *headerKeys;
- (void)encodeWithCoder:(id)a0;
- (void).cxx_destruct;
- (id)initWithCoder:(id)a0;
- (id)firstHeaderForKey:(id)a0;
- (id)headersForKey:(id)a0;
- (id)initWithHeaders:(id)a0;
@end