/// <summary>
/// Checks if aggregation with given name is available on the result and throws if not
/// </summary>
public static void CheckForAggregationInResult(this AggregateDictionary aggs, string aggName)
{
if (aggs == null || aggs.Count == 0)
{
throw new InvalidOperationException("No aggregations available on the result");
}
if (!aggs.ContainsKey(aggName))
{
var availableAggregations = aggs.Select(x => x.Key).Aggregate((agg, x) => agg + "m" + x);
throw new InvalidOperationException($"Aggregation {aggName} not in the result. Available aggregations: {availableAggregations}");
}
}