///<summary>Limit the information returned to the specified metrics</summary>
public NodesUsageDescriptor Metric(Metrics metric) => Assign(metric, (a, v) => a.RouteValues.Optional("metric", v));
///<summary>/_nodes/{node_id}/usage/{metric}</summary>
///<param name = "nodeId">Optional, accepts null</param>
///<param name = "metric">Optional, accepts null</param>
public NodesUsageDescriptor(NodeIds nodeId, Metrics metric) : base(r => r.Optional("node_id", nodeId).Optional("metric", metric))
{
}
///<summary>/_nodes/{node_id}/stats/{metric}/{index_metric}</summary>
///<param name = "nodeId">Optional, accepts null</param>
///<param name = "metric">Optional, accepts null</param>
///<param name = "indexMetric">Optional, accepts null</param>
public NodesStatsDescriptor(NodeIds nodeId, Metrics metric, IndexMetrics indexMetric) : base(r => r.Optional("node_id", nodeId).Optional("metric", metric).Optional("index_metric", indexMetric))
{
}
///<summary>/_nodes/usage/{metric}</summary>
///<param name = "metric">Optional, accepts null</param>
public NodesUsageDescriptor(Metrics metric) : base(r => r.Optional("metric", metric))
{
}
///<summary>/_nodes/stats/{metric}/{index_metric}</summary>
///<param name = "metric">Optional, accepts null</param>
///<param name = "indexMetric">Optional, accepts null</param>
public NodesStatsDescriptor(Metrics metric, IndexMetrics indexMetric) : base(r => r.Optional("metric", metric).Optional("index_metric", indexMetric))
{
}