/// <reference types="node" />
import * as fs from 'fs';
interface ConstructorOptions {
    cwd?: string;
    base?: string;
    path?: string;
    history?: string[];
    stat?: fs.Stats;
    contents?: Buffer | NodeJS.ReadableStream | null;
    [customOption: string]: any;
}
export interface FileConstructor {
    new (options: ConstructorOptions & {
        contents: Buffer;
    }): BufferFile;
    isVinyl(obj: any): obj is File;
    isCustomProp(name: string): boolean;
    prototype: File;
}
declare let File: FileConstructor;
interface File {
    contents: Buffer | NodeJS.ReadableStream | null;
    cwd: string;
    base: string;
    path: string;
    readonly history: ReadonlyArray<string>;
    relative: string;
    dirname: string;
    basename: string;
    stem: string;
    extname: string;
    symlink: string | null;
    stat: fs.Stats | null;
    [customProperty: string]: any;
    isBuffer(): this is BufferFile;
    isStream(): this is StreamFile;
    isNull(): this is NullFile;
    isDirectory(): this is DirectoryFile;
    isSymbolic(): this is SymbolicFile;
    clone(opts?: {
        contents?: boolean;
        deep?: boolean;
    } | boolean): this;
    inspect(): string;
    pipe<T extends NodeJS.WritableStream>(stream: T, opts?: {
        end?: boolean;
    }): T;
}
interface BufferFile extends File {
    contents: Buffer;
    isStream(): this is never;
    isBuffer(): true;
    isNull(): this is never;
    isDirectory(): this is never;
    isSymbolic(): this is never;
}
interface StreamFile extends File {
    contents: NodeJS.ReadableStream;
    isStream(): true;
    isBuffer(): this is never;
    isNull(): this is never;
    isDirectory(): this is never;
    isSymbolic(): this is never;
}
interface NullFile extends File {
    contents: null;
    isStream(): this is never;
    isBuffer(): this is never;
    isNull(): true;
    isDirectory(): this is DirectoryFile;
    isSymbolic(): this is SymbolicFile;
}
interface DirectoryFile extends NullFile {
    isDirectory(): true;
    isSymbolic(): this is never;
}
interface SymbolicFile extends NullFile {
    isDirectory(): this is never;
    isSymbolic(): true;
}
export {};