@Override
		public void execute(P plugin, CommandHandler<P> handler, CommandSender sender, String label, String[] parameters) {
			int page = 1;
			if (parameters.length == 1) {
				String input = parameters[0];
				try {
					page = Integer.parseInt(input);
				} catch (NumberFormatException exception) {
					plugin.displayMessage(sender, INVALID_INPUT.replace("<input>", input));
					return;
				}
				if (!helpPage.hasPage(sender, page)) {
					plugin.displayMessage(sender, INVALID_PAGE);
					return;
				}
			}
			helpPage.displayPage(sender, label, page);
		}