@class NSString; @interface BMContentAttachment : NSObject <BMStoreData, NSSecureCoding, BMProtoBufWrapper, BMStreamValidating> @property (class, readonly) BOOL supportsSecureCoding; @property (readonly, nonatomic) NSString *type; @property (readonly, nonatomic) NSString *filename; @property (readonly, nonatomic) NSString *path; @property (readonly, nonatomic) unsigned int dataVersion; @property (readonly) unsigned long long hash; @property (readonly) Class superclass; @property (readonly, copy) NSString *description; @property (readonly, copy) NSString *debugDescription; + (id)eventWithData:(id)a0 dataVersion:(unsigned int)a1; - (id)initWithProto:(id)a0; - (id)init; - (id)encodeAsProto; - (id)proto; - (id)serialize; - (id)initWithProtoData:(id)a0; - (void)encodeWithCoder:(id)a0; - (id)jsonDict; - (id)json; - (void).cxx_destruct; - (BOOL)isValidWithContext:(id)a0 error:(id *)a1; - (BOOL)isCompleteWithContext:(id)a0 error:(id *)a1; - (BOOL)isEqual:(id)a0; - (id)initWithCoder:(id)a0; - (id)initWithType:(id)a0 filename:(id)a1 path:(id)a2; @end