/**
 * @license
 * Copyright Google Inc. All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
/**
 * HTTP request body used by both {@link Request} and {@link Response}
 * https://fetch.spec.whatwg.org/#body
 */
export declare abstract class Body {
    /**
     * Attempts to return body as parsed `JSON` object, or raises an exception.
     */
    json(): any;
    /**
     * Returns the body as a string, presuming `toString()` can be called on the response body.
     *
     * When decoding an `ArrayBuffer`, the optional `encodingHint` parameter determines how the
     * bytes in the buffer will be interpreted. Valid values are:
     *
     * - `legacy` - incorrectly interpret the bytes as UTF-16 (technically, UCS-2). Only characters
     *   in the Basic Multilingual Plane are supported, surrogate pairs are not handled correctly.
     *   In addition, the endianness of the 16-bit octet pairs in the `ArrayBuffer` is not taken
     *   into consideration. This is the default behavior to avoid breaking apps, but should be
     *   considered deprecated.
     *
     * - `iso-8859` - interpret the bytes as ISO-8859 (which can be used for ASCII encoded text).
     */
    text(encodingHint?: 'legacy' | 'iso-8859'): string;
    /**
     * Return the body as an ArrayBuffer
     */
    arrayBuffer(): ArrayBuffer;
    /**
      * Returns the request's body as a Blob, assuming that body exists.
      */
    blob(): Blob;
}