import { Readable } from 'node:stream';
export type InputFileData = string | Buffer | Readable;
export declare class InputFile {
    readonly source: InputFileData;
    readonly fileName?: string;
    constructor(source: InputFileData, fileName?: string);
    static fromFileId(fileId: string): InputFile;
    static fromUrl(url: string): InputFile;
    static fromBuffer(buffer: Buffer, fileName: string): InputFile;
    static fromStream(stream: Readable, fileName: string): InputFile;
    static fromPath(filePath: string): InputFile;
    get isUrl(): boolean;
    get isFileId(): boolean;
    get isBuffer(): boolean;
    get isStream(): boolean;
    get needsUpload(): boolean;
}