export interface WipTargetInfo {
    targetId: string;
    type: string;
    [key: string]: unknown;
}
type EventHandler = (params: unknown) => void;
export declare class WipSession {
    private ws;
    private nextOuterId;
    private nextInnerId;
    private readonly pending;
    private readonly events;
    private readonly targets;
    private pageTargetId;
    private pageTargetWaiters;
    private closed;
    connect(url: string, timeoutMs?: number): Promise<void>;
    /**
     * Wait until a `Target.targetCreated` event with type=page arrives.
     * Resolves immediately if a page target has already been seen.
     */
    waitForPageTarget(timeoutMs?: number): Promise<WipTargetInfo>;
    /**
     * Send an inner JSON-RPC request to the page target, wrapped in
     * Target.sendMessageToTarget. Resolves with the inner result.
     */
    send<R = unknown>(method: string, params?: unknown, timeoutMs?: number): Promise<R>;
    sendToTarget<R = unknown>(targetId: string, method: string, params?: unknown, timeoutMs?: number): Promise<R>;
    /**
     * Subscribe to a domain event (e.g. `Console.messageAdded`,
     * `Network.requestWillBeSent`). Handlers receive the inner `params`.
     */
    on(event: string, handler: EventHandler): () => void;
    close(): void;
    getTargets(): WipTargetInfo[];
    private handleOuter;
    private handleInner;
    private dispatchEvent;
    private handleClose;
}
export {};