Get impact metrics configuration for the instance

Example response

{
  "configs": [
    {
      "id": "01ARZ3NDEKTSV4RRFFQ69G5FAV",
      "metricName": "unleash_counter_feature_toggle_usage_total",
      "timeRange": "day",
      "aggregationMode": "rps",
      "labelSelectors": {
        "environment": [
          "development"
        ],
        "project": [
          "default"
        ]
      },
      "source": "internal",
      "displayName": "feature_toggle_usage_total",
      "yAxisMin": "auto",
      "step": "15m",
      "title": "Feature Toggle Usage",
      "mode": "write"
    }
  ]
}