public static @NotNull <S extends Scheme> Collection<SchemeExporterEP<S>> getExtensions(Class<S> schemeClass) {
    List<SchemeExporterEP<S>> exporters = new ArrayList<>();
    for (SchemeExporterEP<?> exporterEP : EP_NAME.getExtensions()) {
      if (schemeClass.getName().equals(exporterEP.schemeClass)) {
        //noinspection unchecked
        exporters.add((SchemeExporterEP<S>)exporterEP);
      }
    }
    return exporters;
  }
public static @NotNull <S extends Scheme> Collection<SchemeExporterEP<S>> getExtensions(Class<S> schemeClass)