code: public static <V extends FeatureVector<?>> VectorTypeInformation<V> typeRequest(Class<? super V> cls, int mindim, int maxdim) {
      return new VectorTypeInformation<>(cls, mindim, maxdim);
    }
docs: Constructor for a type request with dimensionality constraints.
  
  @param cls Class constraint
  @param mindim Minimum dimensionality
  @param maxdim Maximum dimensionality
  @param <V> vector type