import { BackoffRetryParams } from './contracts.js';
export declare const FDC3_VERSION = "2.2.0";
export declare const FDC3_PROVIDER = "Morgan Stanley";
/**
 * timeout for waiting for window.fdc3 to be set.
 * https://fdc3.finos.org/docs/next/api/specs/webConnectionProtocol#12-desktop-agent-discovery
 */
export declare const DEFAULT_AGENT_DISCOVERY_TIMEOUT = 750;
export declare const FDC3_READY_EVENT = "fdc3Ready";
/**
 * Constants for Desktop Agent Keep Alive functionality
 */
export declare const HEARTBEAT: {
    /**
     * Interval between heartbeat checks in milliseconds
     * 1500 milliseconds is a reasonable default for web applications
     */
    readonly INTERVAL_MS: 1500;
    /**
     * Maximum number of failed heartbeat attempts before considering a proxy disconnected
     */
    readonly MAX_TRIES: 3;
    /**
     * How long to wait for a heartbeat acknowledgment before considering it failed
     * 500 milliseconds gives enough time for the proxy browser Window or Frame to process the heartbeat
     */
    readonly TIMEOUT_MS: 500;
};
export declare const defaultBackoffRetry: Required<BackoffRetryParams>;