import type { BackendSocket, BackendTransport } from './types.js';
export type { BackendSocket } from './types.js';
export declare class BackendRequestError extends Error {
    readonly status: number;
    readonly data: unknown;
    readonly name = "BackendRequestError";
    constructor(status: number, data: unknown);
}
export interface BackendRequestOptions {
    method?: string;
    body?: unknown;
    headers?: Record<string, string>;
    signal?: AbortSignal;
}
/** Generic game-owned backend API. It does not impose rooms or game state. */
export declare class GameBackendClient {
    private readonly transport;
    constructor(transport: BackendTransport);
    request<T = unknown>(path: string, options?: BackendRequestOptions): Promise<T>;
    get<T = unknown>(path: string, options?: Omit<BackendRequestOptions, 'method' | 'body'>): Promise<T>;
    post<T = unknown>(path: string, body?: unknown, options?: Omit<BackendRequestOptions, 'method' | 'body'>): Promise<T>;
    connect(path: string, options?: {
        protocols?: string[];
        signal?: AbortSignal;
    }): Promise<BackendSocket>;
}