import { ReadStream, ReadStreamOptions, WriteStream } from './fs-capacitor';
import { StorageFile } from './storage';
export interface MemoryUploadFile extends StorageFile {
    createReadStream?(options?: ReadStreamOptions): ReadStream;
    capacitor?: WriteStream;
    file?: File;
}
export interface StreamUploadFile extends StorageFile {
    createReadStream(options?: ReadStreamOptions): ReadStream;
    capacitor: WriteStream;
    file?: File;
}
export declare class Upload {
    promise: Promise<MemoryUploadFile>;
    resolve: (file?: MemoryUploadFile) => void;
    reject: (error?: Error | string) => void;
    file?: MemoryUploadFile;
    constructor();
}