import * as Madlad from 'madlad';
import { Command } from './command';
/**
 * Creates CLI argument based on the passed `options` and assigns its value to the property
 *
 * @param options IOption object, which defines the argument of the command
 */
export declare function Argument(options: Madlad.Argument): PropertyDecorator;
/**
 * Get the yargs argument option key from ExternalOption metadata on the given property
 *
 * @param target Command instance
 * @param propertyKey Property of the command instance
 */
export declare function getArgument<T extends Command, K extends Extract<keyof T, string>>(target: T, propertyKey: K): Madlad.Argument<T>;