import { InAppMessageBridge } from "./InAppMessageBridge";
/**
 * install in-app message bridge to Window.
 * this bridge is used to communicate between HTML and hackle client.
 * See below for more details.
 * @example Hackle.bridge.track("eventKey", { property: "value" })
 * @example Hackle.PropertyOperationsBuilder.set("propertyKey", "value").build().toEvent("eventKey")
 * @example Hackle.HackleSubscriptionOperationsBuilder.marketing(HackleSubscriptionStatus.SUBSCRIBED).build().toRecord()
 */
export declare class InAppMessageBridgeInstaller {
    private static readonly HACKLE_IAM_SCRIPT_CONTAINER_NAME;
    private static readonly HACKLE_IAM_BRIDGE_FIELD_NAME;
    private static readonly HACKLE_IAM_BRIDGE_READY_EVENT_NAME;
    private static createBridgeReadyEvent;
    static install(targetWindow: Window, bridge: InAppMessageBridge): void;
    static isBridgeInstalled(targetWindow: Window): boolean;
}