code: public static <W extends Window> CountEvictor<W> of(long maxCount, boolean doEvictAfter) {
  		return new CountEvictor<>(maxCount, doEvictAfter);
  	}
docs: Creates a {@code CountEvictor} that keeps the given number of elements in the pane
  Eviction is done before/after the window function based on the value of doEvictAfter.
  
  @param maxCount The number of elements to keep in the pane.
  @param doEvictAfter Whether to do eviction after the window function.