import { Decrypter, Encrypter, Message } from "../message";
import { MessageEnvelope } from "../message-envelope";
import { HcsVcOperation } from "./hcs-vc-operation";
export declare class HcsVcMessage extends Message {
    private operation;
    private credentialHash;
    /**
     * Creates a new message instance.
     *
     * @param operation      Operation type.
     * @param credentialHash Credential hash.
     */
    constructor(operation: HcsVcOperation, credentialHash: string);
    /**
     * Checks if the message is valid from content point of view.
     * Does not verify hash nor any signatures.
     *
     * @return True if the message is valid and False otherwise.
     */
    isValid(): boolean;
    getOperation(): HcsVcOperation;
    getCredentialHash(): string;
    toJsonTree(): any;
    static fromJsonTree(tree: any, result?: HcsVcMessage): HcsVcMessage;
    toJSON(): string;
    static fromJson(json: string): Message;
    /**
     * Creates a new VC message for submission to HCS topic.
     *
     * @param credentialHash VC hash.
     * @param operation      The operation on a VC document.
     * @return The HCS message wrapped in an envelope for the given VC and operation.
     */
    static fromCredentialHash(credentialHash: string, operation: HcsVcOperation): MessageEnvelope<HcsVcMessage>;
    /**
     * Provides an encryption operator that converts an {@link HcsVcMessage} into encrypted one.
     *
     * @param encryptionFunction The encryption function to use for encryption of single attributes.
     * @return The encryption operator instance.
     */
    static getEncrypter(encryptionFunction: Encrypter<string>): Encrypter<HcsVcMessage>;
    /**
     * Provides a decryption function that converts {@link HcsVcMessage} in encrypted for into a plain form.
     *
     * @param decryptionFunction The decryption function to use for decryption of single attributes.
     * @return The decryption function for the {@link HcsVcMessage}
     */
    static getDecrypter(decryptionFunction: Decrypter<string>): Decrypter<HcsVcMessage>;
}