/**
 * @license
 * Copyright 2020 Google LLC
 * SPDX-License-Identifier: Apache-2.0
 */
import { PbEciesAeadHkdfPrivateKey, PbEciesAeadHkdfPublicKey } from '../internal/proto';
/**
 * WARNING: This method assumes that the given key proto is valid.
 *
 */
export declare function getJsonWebKeyFromProto(key: PbEciesAeadHkdfPrivateKey | PbEciesAeadHkdfPublicKey): JsonWebKey;