import type { JSONValue, UploadOptions } from './types.js';
import type { Readable, Writable } from 'node:stream';
import { Params } from './body/params.js';
import { Headers } from './headers.js';
import DOM from '@mojojs/dom';
interface FileUpload {
    fieldname: string;
    file: Readable;
    filename: string;
    encoding: string;
    mimetype: string;
}
type FormIterator = AsyncIterableIterator<[string, Readable, string, string, string]>;
/**
 * HTTP message body base class.
 */
export declare class Body {
    /**
     * Automatically decompress message body if necessary.
     */
    autoDecompress: boolean;
    /**
     * HTTP headers.
     */
    headers: Headers;
    _form: Params | undefined;
    _stream: Readable;
    constructor(headers: string[], stream: Readable);
    [Symbol.asyncIterator](): AsyncIterable<Buffer>;
    /**
     * Get message body as `Buffer` object.
     */
    buffer(): Promise<Buffer>;
    /**
     * Get message body as a readable stream.
     */
    createReadStream(): Readable;
    /**
     * Get async iterator for uploaded files from message body.
     * @example
     * // Iterate over uploaded files
     * for await (const {fieldname, file, filename} of body.files()) {
     *   const parts = [];
     *   for await (const chunk of file) {
     *     parts.push(chunk);
     *   }
     *   const content = Buffer.concat(parts).toString();
     *   console.write(`${fieldname}: ${content}`);
     * }
     */
    files(options?: UploadOptions): AsyncIterableIterator<FileUpload>;
    /**
     * Get form parameters from message body.
     * @example
     * // Get a specific parameter
     * const params = await body.form();
     * const foo = params.get('foo');
     */
    form(options?: UploadOptions): Promise<Params>;
    /**
     * Get HTTP header from message.
     * @example
     * // Get User-Agent header
     * const agent = body.get('User-Agent');
     */
    get(name: string): string | null;
    /**
     * Get HTML message body as `@mojojs/dom` object.
     */
    html(): Promise<DOM>;
    /**
     * Get JSON message body as parsed data structure.
     */
    json<T = JSONValue>(): Promise<T>;
    /**
     * Pipe message body to writable stream.
     */
    pipe(writer: Writable): Promise<void>;
    /**
     * Set HTTP header for message.
     * // Set Server header
     * body.set('Server', 'mojo.js');
     */
    set(name: string, value: string): this;
    /**
     * Get message body as string.
     */
    text(charset?: BufferEncoding): Promise<string>;
    /**
     * Get XML message body as `@mojojs/dom` object.
     */
    xml(): Promise<DOM>;
    /**
     * Get YAML message body as parsed data structure.
     */
    yaml(): Promise<unknown>;
    _consumeBody(): Promise<Uint8Array[]>;
    _formIterator(options?: UploadOptions): FormIterator;
    _isForm(): boolean;
    get _params(): Params;
}
export {};