import { StoreApi } from '../api/store/StoreApi';
/**
 * Represents a file stream uploader for uploading a Browser FileHandle in chunks.
 */
export declare class FileUploader {
    private _handle;
    private _offset;
    private _size;
    private _api;
    private _reader;
    /**
     * Creates an instance of FileUploader.
     *
     * @param {number} handle - The file handle.
     * @param {File} file - The data (file content) to upload.
     * @param {StoreApi} api {@link StoreApi `StoreApi`} instance
     * @param {number} [offset=0] - The starting offset for uploading.
     */
    constructor(handle: number, file: File, api: StoreApi, offset?: number);
    /**
     * Gets the progress of uploading the file as a percentage.
     *
     * @returns {number} The progress percentage.
     */
    get progress(): number;
    /**
     * Sends the next chunk of the file data to the server.
     *
     * @returns {Promise<boolean>} A promise that resolves to true if there are more chunks to send, or false if all data has been sent.
     */
    sendNextChunk(): Promise<boolean>;
    /**
     * Aborts the uploading process, closes the file handle, and deletes the uploaded part of the file.
     *
     * @returns {Promise<void>} A promise that resolves when the file handle is closed and the uploaded part is deleted.
     */
    abort(): Promise<void>;
    /**
     * Closes the file handle.
     *
     * @returns {Promise<string>} A promise that resolves when the file handle is closed and returns file ID.
     */
    close(): Promise<string>;
}