import { ASTSource } from '../source';
import { AST } from '../class';
/**
 * ASTNode constructor.
 */
export declare abstract class ASTNode extends AST {
    /**
     * Location information.
     */
    source: ASTSource;
    constructor();
    /**
     * Copy instance.
     *
     * @returns Copied instance.
     */
    copy(): this;
}