/**
 *
 *
 * @class NodeReceipt
 */
export declare class NodeReceipt {
    /**
     *
     * Creates a NodeReceipt object using a JSON string
     * @param {String} json - JSON string.
     * @returns {NodeReceipt} - NodeReceipt object.
     * @memberof NodeReceipt
     */
    static fromJSON(json: string): NodeReceipt;
    readonly address: string;
    readonly blockchain: string;
    readonly appPubKey: string;
    readonly sessionBlockHeight: BigInt;
    readonly height: BigInt;
    readonly receiptType: string;
    /**
     * Node Receipt.
     * @constructor
     * @param {string} address - Node address.
     * @param {string} blockchain - Blockchain hash.
     * @param {string} appPubKey - Application Key associated with a client.
     * @param {BigInt} sessionBlockHeight - Session Block Height.
     * @param {BigInt} height - Current height.
     * @param {string} receiptType - Receipt type.
     */
    constructor(address: string, blockchain: string, appPubKey: string, sessionBlockHeight: BigInt, height: BigInt, receiptType: string);
    /**
     *
     * Creates a JSON object with the NodeReceipt properties
     * @returns {JSON} - JSON Object.
     * @memberof NodeReceipt
     */
    toJSON(): {
        address: string;
        app_pubkey: string;
        blockchain: string;
        height: number;
        session_block_height: number;
        receipt_type: string;
    };
    /**
     *
     * Check if the NodeReceipt object is valid
     * @returns {boolean} - True or false.
     * @memberof NodeReceipt
     */
    isValid(): boolean;
}