import { BaseNodeType } from '../nodes/_Base';
import { PolyEngine } from '../Poly';
import { CoreGraphNodeId } from '../../core/graph/CoreGraph';
export interface BlobUrlData {
    blobUrl: string;
}
export interface BlobsControllerFetchNodeOptions {
    multiAssetsForNode?: boolean;
}
export interface FetchNodeBlobUrlOptions extends BlobsControllerFetchNodeOptions {
    fullUrl: string;
    node: BaseNodeType;
}
export interface FetchBlobResponse {
    blobWrapper?: BlobWrapper;
    error?: string;
}
interface BlobWrapper {
    blob: Blob;
    blobUrl: string;
    referringNodeIds: Set<CoreGraphNodeId>;
}
interface BlobData {
    url: string;
    blobWrapper: BlobWrapper;
}
type BlobDataCallback = (params: BlobData) => void;
export declare class BlobsController {
    private poly;
    constructor(poly: PolyEngine);
    recording(): boolean;
    clear(): void;
    clearBlobsForNode(node: BaseNodeType): void;
    setVirtualFile(file: File, uniqueId: string): Promise<void>;
    fetchBlobGlobal(url: string): Promise<FetchBlobResponse | void>;
    traverse(callback: BlobDataCallback): void;
}
export {};