/**
 * Returns the number at the end of a string
 *
 * @remarks
 * It takes 1 arguments.
 *
 * opdigits(<word\>)
 *
 * - **<word\>** returns the number at the end of word
 *
 * ## Usage
 *
 * - `opdigits('/geo1')` - returns 1
 * - `opdigits($OS)` - returns the number at the end of the name of the current node
 *
 */
import { BaseMethod } from './_Base';
import { MethodDependency } from '../MethodDependency';
export declare class OpdigitsExpression extends BaseMethod {
    protected _require_dependency: boolean;
    static required_arguments(): string[][];
    find_dependency(index_or_path: number | string): MethodDependency | null;
    process_arguments(args: any[]): Promise<any>;
}