docs: @Nonnull
  	public static <T1, T2> ToDoubleBiFunction<T1, T2> toDblBiFunctionFrom(Consumer<ToDoubleBiFunctionBuilder<T1, T2>> buildingFunction) {
  		ToDoubleBiFunctionBuilder builder = new ToDoubleBiFunctionBuilder();
  		buildingFunction.accept(builder);
  		return builder.build();
  	}