/// <reference types="./deno_runtime" />
import { LocalDataFile } from './LocalDataFile';
import { LocalFileSourceDeno } from '../types';
/**
 * Represents a data file on the deno platform.
 */
export declare class LocalDataFileDeno extends LocalDataFile {
    /**
     * Utility function to wrap a file as a [[DataFile]] for this platform.
     * @param source - The file to wrap
     */
    static fromSource(source: LocalFileSourceDeno): Promise<LocalDataFileDeno>;
    /**
     * Deno's internal file handle representation.
     */
    private file;
    /**
     * Information about this file.
     */
    private info;
    /**
     * @param file - A deno file instance
     * @param info - Info for the file instance
     */
    constructor(file: Deno.File, info: Deno.FileInfo);
    /**
     * The total length, in bytes, of the file this instance represents.
     */
    get byteLength(): Promise<number>;
    /**
     * Closes the local file handle for the current platform. After this function is called all subsequent operations
     * on this file, or any other data sources depending on this file, will fail.
     */
    close(): void;
    /**
     * Loads the file into an ArrayBuffer. Optionally a `start` and `end` can be specified to load a part of the file.
     * @param start - The offset at which the data will start loading
     * @param end - The offset at which the data will stop loading
     */
    loadData(start?: number, end?: number): Promise<ArrayBuffer>;
    /**
     * Loads data into a buffer with the specified parameters.
     * @param buffer - The buffer in which the data will be loaded. It must be large enough to fit the data requested
     * @param offset - The byte offset within the buffer at which the data will be written
     * @param start - The byte offset within the file where data will be read
     * @param end - The byte offset within the file at which the data will stop being read
     */
    private loadDataIntoBuffer;
}