import { type FederationRemote, type LoadRemoteEntryOptions } from './remote-loader.js';
export interface PreloadBatchOptions extends LoadRemoteEntryOptions {
    /** Max simultaneous loads. Default: 3. */
    concurrency?: number;
    /** Run during `requestIdleCallback`. Default: true. */
    idle?: boolean;
    /** Idle deadline budget ms — pauses when out of idle time. Default: 8. */
    idleBudgetMs?: number;
    /** Called with per-remote outcomes. */
    onResult?: (r: PreloadResult) => void;
}
export interface PreloadResult {
    remote: string;
    ok: boolean;
    durationMs: number;
    error?: unknown;
}
/**
 * Load N remotes in parallel, optionally on idle time. Dedupes via
 * `loadRemoteEntry` internal state.
 */
export declare function preloadRemotes(remotes: FederationRemote[], opts?: PreloadBatchOptions): Promise<PreloadResult[]>;
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