private void setReleaseMetrics() {
    besuComponent
        .getMetricsSystem()
        .createLabelledSuppliedGauge(
            StandardMetricCategory.PROCESS, "release", "Release information", "version")
        .labels(() -> 1, BesuVersionUtils.version());
  }
Load key pair from private key. Visible to be accessed by subcommands.

@param nodePrivateKeyFile File containing private key
@return KeyPair loaded from private key file
app/src/main/java/org/hyperledger/besu/cli/BesuCommand.java