ActionCommand.java

@Pack
@Command("say <message>")
public class ActionCommand {
    @Bind(pattern = "<message>")
    public final ArgumentType<String> message = StringArgumentType.greedyString();

    @Bind(pattern = "<message>")
    public void send(CommandSender source, @Let("<message>") String message) {
        source.sendMessage(message);
    }
}