internal static void Configure(this Features <IMappingFeature> features, TypeMap typeMap) => features.ForAll(feature => feature.Configure(typeMap));
 internal static void Seal(this Features <IRuntimeFeature> features, IConfigurationProvider configurationProvider)
 {
     features.ForAll(feature => feature.Seal(configurationProvider));
     features.MakeReadOnly();
 }
 internal static void Configure(this Features <IGlobalFeature> features, MapperConfiguration mapperConfiguration) => features.ForAll(feature => feature.Configure(mapperConfiguration));