export interface Settle {
    busy(): boolean;
    onSettle(fn: () => void): () => void;
    afterViewport(fn: () => void): void;
    unmount(): void;
}
export interface SettleOptions {
    readonly surface?: HTMLElement;
    readonly quietMs?: number;
}
export declare function watchSettle(owner: Document, options?: SettleOptions): Settle;
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