AMEAspectSpeedometer aspectSpeedometer = [AMEAspectSpeedometer new];
[aspectSpeedometer measureWithName:@"test"
                             target:self
                             around:@selector(returnNumber)
                   usingReportBlock:^(AMESpeedometerReport *report) { NSLog(@"%@", report); }];

[aspectSpeedometer measureWithName:@"test tap start and finish"
                             target:self
                              start:@selector(tapStartButton:)
                             finish:@selector(tapFinishButton:)
                   usingReportBlock:^(AMESpeedometerReport *report) {
                       NSLog(@"%@", report);
                       self.label.text = [NSString stringWithFormat:@"elapsed time: %f", report.elapsedTime];
                   }];