attr_val: Value of the attr_name to check.
      node_name: Name of the node to match. Accepts regex2 format.

    Returns:
      True if there exists a node whose name matches `op_name` and 'attr_val' if
      'attr_name' is given.
    """

    def match_node_name(name):
      if not node_name:
        return True
      compiled_regex = re.compile(node_name)
      match = re.fullmatch(compiled_regex, name)

  local nodes_stats="${KUBECTL} --kubeconfig '${CERT_DIR}/admin.kubeconfig' get nodes"
  local node_name=$HOSTNAME_OVERRIDE
  local system_node_wait_time=60
  local interval_time=2
  kube::util::wait_for_success "$system_node_wait_time" "$interval_time" "$nodes_stats | grep $node_name"
  if [ $? == "1" ]; then
    echo "time out on waiting $node_name exist"
    exit 1
  fi

  local system_node_ready_time=300

    }
  }

  struct EdgeInfo {
    absl::string_view node_name;
    std::optional<absl::string_view> cluster_name;

    absl::string_view GetClusterName() const {
      return cluster_name ? *cluster_name : "[none]";
    }

    std::pair<absl::string_view, std::optional<absl::string_view>> AsPair()
        const {
      return {node_name, cluster_name};
    }

  # try creating again just in case.
  New-Item $fluentd_config_dir -ItemType 'directory' -Force | Out-Null

  $config = $FLUENTD_CONFIG.replace('NODE_NAME', (hostname))
  $config | Out-File -FilePath $fluentd_config_file -Encoding ASCII
  Log-Output "Wrote fluentd logging config to $fluentd_config_file"