type AssetStatus = {
    type: string;
    assetUrl: string;
    progressRatio: number;
    loadStatus: boolean | Error;
};
type LoadingCountSummary = {
    totalLoaded: number;
    totalErrored: number;
    totalToLoad: number;
};
type LoadingProgressSummary = {
    initialLoad: boolean | Error;
    summary: LoadingCountSummary;
    summaryByType: {
        [key: string]: LoadingCountSummary & {
            assetErrors: Array<[string, Error]>;
        };
    };
    innerDocuments: Array<[string, LoadingProgressSummary]>;
};
export declare class LoadingProgressManager {
    summary: LoadingCountSummary;
    initialLoad: boolean | Error;
    loadingAssets: Map<unknown, AssetStatus>;
    summaryByType: Map<string, LoadingCountSummary & {
        assets: Map<unknown, AssetStatus>;
    }>;
    loadingDocuments: Map<unknown, {
        documentUrl: string;
        progressManager: LoadingProgressManager;
    }>;
    private onProgressCallbacks;
    constructor();
    addProgressCallback(callback: () => void): void;
    removeProgressCallback(callback: () => void): void;
    private onProgress;
    addLoadingAsset(ref: unknown, url: string, type: string): void;
    setInitialLoad(result: true | Error): void;
    disposeOfLoadingAsset(ref: unknown): void;
    errorLoadingAsset(ref: unknown, err: Error): void;
    updateAssetProgress(ref: unknown, progressRatio: number): void;
    completedLoadingAsset(ref: unknown): void;
    addLoadingDocument(ref: unknown, documentUrl: string, progressManager: LoadingProgressManager): void;
    removeLoadingDocument(ref: unknown): void;
    updateDocumentProgress(ref: unknown): void;
    toSummary(): LoadingProgressSummary;
    static LoadingProgressSummaryToString(loadingProgressSummary: LoadingProgressSummary): string;
    toRatio(): [number, boolean];
}
export {};
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