import { VNode } from "./vnode";
export declare const ToString: unique symbol;
/**
 * @experimental
 */
export declare const ToStringIsScalar: unique symbol;
/**
 * @experimental
 */
export declare const ToStringGetHeader: unique symbol;
/**
 * @experimental
 */
export declare const ToStringGetBody: unique symbol;
/**
 * @experimental
 */
export declare const ToStringGetFooter: unique symbol;
/**
 * @experimental
 */
export declare const ToStringCache: unique symbol;
/**
 * @experimental
 */
export declare const ToStringGetCacheKey: unique symbol;
/**
 * @experimental
 */
export declare const ToStringUseSource: unique symbol;
/**
 * @experimental
 */
export declare const ToStringDisablePromiseCache: unique symbol;
export interface ToStringContext {
    [ToStringCache]: Pick<WeakMap<VNode, unknown>, "get" | "set">;
    [ToStringIsScalar](node: VNode): boolean;
    [ToStringGetBody](node: VNode, body: string): string;
    [ToStringGetHeader](node: VNode, body: string): string;
    [ToStringGetFooter](node: VNode, body: string): string;
    [ToStringGetCacheKey]?(node: VNode): object | undefined;
    [ToStringUseSource]?: boolean;
    [ToStringDisablePromiseCache]?: boolean;
    [ToString]?(node: VNode): undefined | string | Promise<string | undefined> | AsyncIterable<string>;
}
interface IterablePromise<V> extends AsyncIterable<V> {
    then: PromiseLike<V>["then"];
}
/**
 * @experimental
 */
export declare function toString(node: VNode): IterablePromise<string>;
export declare function toString(this: Partial<ToStringContext> & VNode): IterablePromise<string>;
export declare function toString(this: Partial<ToStringContext>, node: VNode): IterablePromise<string>;
export {};
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