public static LabelledMetric<OperationTimer> getOperationTimerLabelledMetric(
      final int labelCount) {
    return new LabelCountingNoOpMetric<>(labelCount, NO_OP_OPERATION_TIMER);
  }
Gets operation timer labelled metric.

@param labelCount the label count
@return the operation timer labelled metric
metrics/core/src/main/java/org/hyperledger/besu/metrics/noop/NoOpMetricsSystem.java