/**
 * The MIT License
 * Copyright © 2021-present KuFlow S.L.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
import type { Headers } from '@temporalio/workflow';
export declare const HEADER_KEY_KUFLOW_ENCODING = "x-kuflow-encoding";
export declare const HEADER_KEY_KUFLOW_ENCODING_ENCRYPTED_KEY_ID = "x-kuflow-encoding-encrypted-key-id";
export declare const HEADER_VALUE_KUFLOW_ENCODING_ENCRYPTED = "binary/encrypted?vendor=KuFlow";
export declare const METADATA_KEY_ENCODING = "encoding";
export declare const METADATA_KEY_ENCODING_ENCRYPTED_KEY_ID: string;
export declare const METADATA_VALUE_KUFLOW_ENCODING_ENCRYPTED = "binary/encrypted?vendor=KuFlow";
export declare class EncryptionState {
    static empty(): EncryptionState;
    static of(keyId: string | undefined): EncryptionState;
    private _keyId;
    get keyId(): string | undefined;
    set keyId(value: string | undefined);
    protected constructor(keyId: string | undefined);
    merge(other: EncryptionState | undefined): void;
}
export declare function retrieveEncryptionState(header: Headers): EncryptionState;
export declare function isEncryptionRequired(header: Headers): boolean;
export declare function addEncryptionEncoding(encryptionState: EncryptionState, headers: Headers): Headers;
export declare function markObjectsToBeEncrypted(encryptionState: EncryptionState, args: unknown[]): unknown[];
export declare class EncryptionWrapper<T = unknown> {
    readonly encryptionState: EncryptionState;
    readonly value: T;
    static of<T = unknown>(encryptionState: EncryptionState, value: T): EncryptionWrapper<T>;
    protected constructor(encryptionState: EncryptionState, value: T);
}
export declare const encryptionState: EncryptionState;