import { Node } from "../node";
import { SessionHeader } from "../input/session-header";
/**
 *
 *
 * @class Session
 */
export declare class Session {
    /**
     *
     * Creates a Session object using a JSON string
     * @param {String} json - JSON string.
     * @returns {Session} - Session object.
     * @memberof Session
     */
    static fromJSON(json: string): Session;
    readonly sessionHeader: SessionHeader;
    readonly sessionKey: string;
    readonly sessionNodes: Node[];
    relayCount: number;
    /**
     * Request for Session.
     * @constructor
     * @param {SessionHeader} sessionHeader - Session Header object.
     * @param {string} sessionKey - Session Key.
     * @param {SessionNode[]} sessionNodes - Nodes for the session.
     */
    constructor(sessionHeader: SessionHeader, sessionKey: string, sessionNodes: Node[]);
    relayPlus(v: number): void;
    /**
     * Returns whether or not a node is part of this session
     * @param {Node} node - Node object to verify if exists in the current session.
     * @returns {boolean} whether or not the node is part of this session
     * @memberof Session
     */
    isNodeInSession(node: Node): boolean;
    /**
     * Returns a random session node that haven't been part of the current consensus
     * @memberof Session
     */
    getUniqueSessionNode(): Node | Error;
    /**
     * Returns a random session node
     * @memberof Session
     */
    getSessionNode(): Node | Error;
    /**
     *
     * Creates a JSON object with the Session properties
     * @returns {JSON} - JSON Object.
     * @memberof Session
     */
    toJSON(): {
        header: {
            app_public_key: string;
            chain: string;
            session_height: number;
        };
        key: string;
        nodes: any;
    };
    /**
     *
     * Check if the Session object is valid
     * @returns {boolean} - True or false.
     * @memberof Session
     */
    isValid(): boolean;
}