+(TargetMouseScroll*) unstringifyImpl: (NSArray*) comps {
NSParameterAssert([comps count] == 2);
TargetMouseScroll* target = [[TargetMouseScroll alloc] init];
+(TargetMouseScroll*) unstringifyImpl: (NSArray*) comps {
NSParameterAssert([comps count] == 2);
TargetMouseScroll* target = [[TargetMouseScroll alloc] init];