import { Binding } from './binding';
/**
 * AsyncBinding — handles `~prop=${promise}`
 *
 * Accepts a Promise (or any thenable). While the promise is pending, sets a
 * `data-pending` attribute on the element and optionally a `pending` property.
 * When the promise resolves, sets `name` property to the resolved value and
 * removes the pending marker. On rejection, sets `name` to undefined and adds
 * a `data-error` attribute with the error message.
 *
 * Supports re-entrant updates: if a new promise arrives before the previous
 * one settles, the previous result is discarded (last-write wins).
 */
export declare class AsyncBinding implements Binding {
    private readonly element;
    private readonly name;
    private generation;
    constructor(element: Element, name: string);
    setValue(value: unknown): Promise<void>;
    clear(): void;
    disconnect(): void;
}
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