export declare class StubBlob {
    readonly size: number;
    readonly type: string;
    constructor(blobParts?: BlobPart[], options?: BlobPropertyBag);
    arrayBuffer(): Promise<ArrayBuffer>;
    bytes(): Promise<Uint8Array<ArrayBuffer>>;
    slice(start?: number, end?: number, contentType?: string): this;
    stream(): ReadableStream<Uint8Array<ArrayBuffer>>;
    text(): Promise<string>;
}
export declare class StubFile extends StubBlob {
    readonly lastModified: number;
    readonly name: string;
    readonly webkitRelativePath: string;
    constructor(fileBits: BlobPart[], fileName: string, options?: FilePropertyBag);
}
export declare const STUB_STORAGE: (map: Map<string, string>) => Storage;
export declare const STUB_TEXT_DECODER: TextDecoder;
export declare const STUB_TEXT_ENCODER: TextEncoder;