code: public static <T extends IPositioned & ISized> IntSupplier below(T other, int spacing)
  	{
  		checkNotNull(other);
  		return () -> {
  			return other.position().y() + other.size().height() + spacing;
  		};
  
  	}
docs: Positions the owner below the other.
  
  @param <T> the generic type
  @param other the other
  @param spacing the spacing
  @return the int supplier