export type Metadata = {
    name: string;
    size: number;
    etag: string;
    md5Hash: string;
    contentType: string;
    bucket: string;
    metadata: Record<string, string>;
};
export interface IFileObject {
    get id(): string;
    writeString(data: string, contentType: string): Promise<void>;
    writeBase64(data: string, contentType?: string): Promise<void>;
    setContentType(contentType: string): Promise<Metadata>;
    url(): Promise<string>;
    exists(): Promise<boolean>;
}
export type IFileObjectFactoryFn = (path: string) => IFileObject;
export declare class StubFileObject implements IFileObject {
    path: string;
    constructor(path: string);
    get id(): string;
    writeString(data: string, contentType: string): Promise<void>;
    writeBase64(data: string, contentType: string): Promise<void>;
    setContentType(contentType: string): Promise<Metadata>;
    url(): Promise<string>;
    exists(): Promise<boolean>;
}