import { RanElement } from '../../utils';
export type { LoadingVariant } from './types';
export declare enum ICON_NAME_AMP {
    DOUBLE_BOUNCE = "double-bounce",
    ROTATE = "rotate",
    STRETCH = "stretch",
    CUBE = "cube",
    DOT = "dot",
    TRIPLE_BOUNCE = "triple-bounce",
    SCALE_OUT = "scale-out",
    CIRCLE = "circle",
    CIRCLE_LINE = "circle-line",
    SQUARE = "square",
    PULSE = "pulse",
    SOLAR = "solar",
    CUBE_FOLD = "cube-fold",
    CIRCLE_FOLD = "circle-fold",
    CUBE_GRID = "cube-grid",
    CIRCLE_TURN = "circle-turn",
    CIRCLE_ROTATE = "circle-rotate",
    CIRCLE_SPIN = "circle-spin",
    DOT_BAR = "dot-bar",
    DOT_CIRCLE = "dot-circle",
    LINE = "line",
    DOT_PULSE = "dot-pulse",
    LINE_SCALE = "line-scale",
    TEXT = "text",
    CUBE_DIM = "cube-dim",
    DOT_LINE = "dot-line",
    ARC = "arc",
    DROP = "drop",
    PACMAN = "pacman"
}
export declare class Loading extends RanElement {
    contain: HTMLDivElement;
    _shadowDom: ShadowRoot;
    /** 递增令牌：异步渲染回来时若 name 已变则丢弃，避免竞态覆盖。 */
    private _renderToken;
    /** 最近一次渲染的 Promise，便于测试 await。 */
    _pending: Promise<void>;
    static get observedAttributes(): string[];
    constructor();
    get name(): ICON_NAME_AMP;
    set name(value: string);
    get sheet(): string;
    set sheet(value: string);
    handlerExternalCss: () => void;
    private applyVariant;
    createLoading: () => void;
    connectedCallback(): void;
    attributeChangedCallback(k: string, o: string, n: string): void;
}
export default Loading;