import { WireContextSubscriptionCallback } from '@lwc/engine-core';
export declare const HostNamespaceKey: unique symbol;
export declare const HostTypeKey: unique symbol;
export declare const HostParentKey: unique symbol;
export declare const HostShadowRootKey: unique symbol;
export declare const HostChildrenKey: unique symbol;
export declare const HostAttributesKey: unique symbol;
export declare const HostValueKey: unique symbol;
export declare const HostHostKey: unique symbol;
export declare const HostContextProvidersKey: unique symbol;
export declare enum HostNodeType {
    Text = "text",
    Comment = "comment",
    Raw = "raw",
    Element = "element",
    ShadowRoot = "shadow-root"
}
export interface HostText {
    [HostTypeKey]: HostNodeType.Text;
    [HostParentKey]: HostElement | null;
    [HostValueKey]: string;
}
export interface HostComment {
    [HostTypeKey]: HostNodeType.Comment;
    [HostParentKey]: HostElement | null;
    [HostValueKey]: string;
}
export interface HostRaw {
    [HostTypeKey]: HostNodeType.Raw;
    [HostParentKey]: HostElement | null;
    [HostValueKey]: string;
}
export interface HostAttribute {
    name: string;
    [HostNamespaceKey]: string | null;
    value: string;
}
export type HostParentNode = HostElement | HostShadowRoot;
export interface HostShadowRoot {
    [HostTypeKey]: HostNodeType.ShadowRoot;
    [HostChildrenKey]: HostChildNode[];
    mode: 'open' | 'closed';
    delegatesFocus: boolean;
    [HostHostKey]: HostElement;
}
export interface HostElement {
    [HostTypeKey]: HostNodeType.Element;
    tagName: string;
    [HostNamespaceKey]: string;
    [HostParentKey]: HostParentNode | null;
    [HostShadowRootKey]: HostShadowRoot | null;
    [HostChildrenKey]: HostChildNode[];
    [HostAttributesKey]: HostAttribute[];
    [HostContextProvidersKey]: Map<string, WireContextSubscriptionCallback>;
}
export type HostNode = HostText | HostElement | HostComment;
export type HostChildNode = HostNode | HostRaw;