@interface RTDistanceInterval : NSObject <NSCopying, NSSecureCoding>
@property (class, readonly) BOOL supportsSecureCoding;
@property (readonly) double startDistance;
@property (readonly) double endDistance;
@property (readonly) double intervalLength;
- (void)encodeWithCoder:(id)a0;
- (id)description;
- (BOOL)isEqual:(id)a0;
- (id)initWithCoder:(id)a0;
- (id)copyWithZone:(struct _NSZone { } *)a0;
- (id)initWithStartDate:(double)a0 length:(double)a1;
- (id)initWithStartDistance:(double)a0 endDistance:(double)a1;
@end