/**
 * Returns one argument from a space-separated arguments list
 *
 * @remarks
 * It takes 2 arguments.
 *
 * `arg(arguments, index)`
 *
 * - `arguments` space-separated arguments list
 * - `index` index of argument to return
 *
 * ## Usage
 *
 * - `opnane('a b c', 1)` - returns '1'
 * - `opname('this is great or is it not', 2)` - returns 'great'
 *
 */
import { BaseMethod } from './_Base';
export declare class ArgExpression extends BaseMethod {
    static requiredArguments(): string[][];
    processArguments(args: any[]): Promise<any>;
}