public void stopTimer(final Labels label) {
    OperationTimer.TimingContext context = timers.remove(label.name());
    if (context != null) {
      context.stopTimer();
    }
  }
Stops the timer for the given synchronization phase.

@param label The synchronization phase to stop the timer for.
metrics/core/src/main/java/org/hyperledger/besu/metrics/SyncDurationMetrics.java