import type { Document } from '../doc/Document.js';
import { Token } from '../parse/cst.js';
import type { StringifyContext } from '../stringify/stringify.js';
import type { Alias } from './Alias.js';
import type { Pair } from './Pair.js';
import type { Scalar } from './Scalar.js';
import type { YAMLMap } from './YAMLMap.js';
import type { YAMLSeq } from './YAMLSeq.js';
export declare type Node<T = unknown> = Alias | Scalar<T> | YAMLMap<unknown, T> | YAMLSeq<T>;
/** Utility type mapper */
export declare type NodeType<T> = T extends string | number | bigint | boolean | null ? Scalar<T> : T extends Array<any> ? YAMLSeq<NodeType<T[number]>> : T extends {
    [key: string]: any;
} ? YAMLMap<NodeType<keyof T>, NodeType<T[keyof T]>> : T extends {
    [key: number]: any;
} ? YAMLMap<NodeType<keyof T>, NodeType<T[keyof T]>> : Node;
export declare type ParsedNode = Alias.Parsed | Scalar.Parsed | YAMLMap.Parsed | YAMLSeq.Parsed;
export declare type Range = [number, number, number];
export declare const ALIAS: unique symbol;
export declare const DOC: unique symbol;
export declare const MAP: unique symbol;
export declare const PAIR: unique symbol;
export declare const SCALAR: unique symbol;
export declare const SEQ: unique symbol;
export declare const NODE_TYPE: unique symbol;
export declare const isAlias: (node: any) => node is Alias;
export declare const isDocument: <T extends Node<unknown> = Node<unknown>>(node: any) => node is Document<T>;
export declare const isMap: <K = unknown, V = unknown>(node: any) => node is YAMLMap<K, V>;
export declare const isPair: <K = unknown, V = unknown>(node: any) => node is Pair<K, V>;
export declare const isScalar: <T = unknown>(node: any) => node is Scalar<T>;
export declare const isSeq: <T = unknown>(node: any) => node is YAMLSeq<T>;
export declare function isCollection<K = unknown, V = unknown>(node: any): node is YAMLMap<K, V> | YAMLSeq<V>;
export declare function isNode<T = unknown>(node: any): node is Node<T>;
export declare const hasAnchor: <K = unknown, V = unknown>(node: unknown) => node is Scalar<V> | YAMLMap<K, V> | YAMLSeq<V>;
export declare abstract class NodeBase {
    readonly [NODE_TYPE]: symbol;
    /** A comment on or immediately after this */
    comment?: string | null;
    /** A comment before this */
    commentBefore?: string | null;
    /**
     * The `[start, value-end, node-end]` character offsets for the part of the
     * source parsed into this node (undefined if not parsed). The `value-end`
     * and `node-end` positions are themselves not included in their respective
     * ranges.
     */
    range?: Range | null;
    /** A blank line before this node and its commentBefore */
    spaceBefore?: boolean;
    /** The CST token that was composed into this node.  */
    srcToken?: Token;
    /** A fully qualified tag, if required */
    tag?: string;
    /** A plain JS representation of this node */
    abstract toJSON(): any;
    abstract toString(ctx?: StringifyContext, onComment?: () => void, onChompKeep?: () => void): string;
    constructor(type: symbol);
    /** Create a copy of this node.  */
    clone(): NodeBase;
}