/// <reference types="node" />
import { ApiClient } from "..";
export type FileObject = {
    id: string;
    object: "file";
    bytes: number;
    created_at: number;
    filename: string;
    purpose: string;
};
type DeletedFile = {
    id: string;
    object: string;
    deleted: boolean;
};
type FileList = {
    data: FileObject[];
    object: "list";
};
export declare function listFiles(client: ApiClient): () => Promise<FileList>;
export declare function uploadFile(client: ApiClient): (file: string | Blob, purpose: string) => Promise<FileObject>;
export declare function deleteFile(client: ApiClient): (id: string) => Promise<DeletedFile>;
export declare function retrieveFile(client: ApiClient): (id: string) => Promise<FileObject>;
export declare function retrieveFileContent(client: ApiClient): (id: string) => Promise<Buffer>;
export {};