AltitudeAngelWings.ApiClient.Client.Extensions.GetFilters C# (CSharp) Метод

        public static IEnumerable<string> GetFilters(this AAFeatureCollection mapData)
        {
            var availableFilters = mapData.Features.SelectMany(x => GetFiltersForFeature(x)).Where(x => x != null).Distinct();

            FiltersSeen.AddRange(availableFilters);

            FiltersSeen = FiltersSeen.Distinct().ToList();

            return availableFilters;
        }