import { Cfb, type Source } from "./cfb/index.js";
export declare class DenoSource implements Source, Disposable {
    #private;
    size: number;
    constructor(file: Deno.FsFile, size: number);
    [Symbol.dispose](): void;
    static open(path: string | URL): Promise<DenoSource>;
    sliceBytes(start: number, end: number): Promise<Uint8Array>;
    sliceView(start: number, end: number): Promise<DataView>;
}
export type DisposableCfb = Disposable & {
    data: Cfb;
};
export interface OpenPathSuccess {
    ok: true;
    data: Cfb;
    error?: never;
}
export interface OpenPathError {
    ok: false;
    data?: never;
    error: string;
}
export type OpenPathResult = Disposable & (OpenPathSuccess | OpenPathError);
export declare const openPath: (path: string | URL) => Promise<DisposableCfb>;
export declare const tryOpenPath: (path: string) => Promise<OpenPathResult>;