/// <reference types="node" />
export type Fetcher = (input: RequestInfo, init?: RequestInit) => Promise<PolyfilledResponse>;
/**
 * a fetch response object that might have some additional properties
 * that come from the underlying fetch implementation, such as the
 * `buffer` method on node-fetch responses.
 */
export interface PolyfilledResponse extends Response {
    buffer?: Function | void;
}
export interface FilehandleOptions {
    /**
     * optional AbortSignal object for aborting the request
     */
    signal?: AbortSignal;
    headers?: any;
    auth?: any;
    overrides?: any;
    encoding?: BufferEncoding;
    /**
     * fetch function to use for HTTP requests. defaults to environment's
     * global fetch. if there is no global fetch, and a fetch function is not provided,
     * throws an error.
     */
    fetch?: Fetcher;
}
export interface Stats {
    size: number;
    [key: string]: any;
}
export interface GenericFilehandle {
    read(buf: Buffer, offset: number, length: number, position: number, opts?: FilehandleOptions): Promise<{
        bytesRead: number;
        buffer: Buffer;
    }>;
    readFile(): Promise<Buffer>;
    readFile(options: BufferEncoding): Promise<string>;
    readFile<T extends undefined>(options: Omit<FilehandleOptions, 'encoding'> | (Omit<FilehandleOptions, 'encoding'> & {
        encoding: T;
    })): Promise<Buffer>;
    readFile<T extends BufferEncoding>(options: Omit<FilehandleOptions, 'encoding'> & {
        encoding: T;
    }): Promise<string>;
    readFile<T extends BufferEncoding>(options: Omit<FilehandleOptions, 'encoding'> & {
        encoding?: T;
    }): T extends BufferEncoding ? Promise<Buffer> : Promise<Buffer | string>;
    readFile(options?: FilehandleOptions | BufferEncoding): Promise<Buffer | string>;
    stat(): Promise<Stats>;
    close(): Promise<void>;
}