/**
 * @license
 * Copyright 2021 Google LLC
 * SPDX-License-Identifier: BSD-3-Clause
 */
import ts from 'typescript';
import type { LitClassContext } from '../lit-class-context.js';
import type { MemberDecoratorVisitor } from '../visitor.js';
/**
 * Transform:
 *
 *   @queryAsync('#myButton')
 *   button
 *
 * Into:
 *
 *   get button() {
 *     return this.updateComplete.then(
 *       () => this.renderRoot.querySelector('#myButton'));
 *   }
 */
export declare class QueryAsyncVisitor implements MemberDecoratorVisitor {
    readonly kind = "memberDecorator";
    readonly decoratorName = "queryAsync";
    private readonly _factory;
    constructor({ factory }: ts.TransformationContext);
    visit(litClassContext: LitClassContext, property: ts.ClassElement, decorator: ts.Decorator): void;
    private _createQueryAsyncGetter;
}