import { Guest, NodeWorker, Target, WorkerLike } from './types';
type RuntimeEnvironment = "browser" | "worker" | "node" | "bun";
export declare function getRuntimeEnvironment(): RuntimeEnvironment;
export declare function isBrowserEnv(): boolean;
/**
 * check if run in a webworker
 *
 * @returns boolean
 */
export declare function isWorker(): boolean;
/**
 * check if run in a Node.js environment
 *
 * @returns boolean
 */
export declare function isNodeEnv(): boolean;
export declare function isBunEnv(): boolean;
export declare function isServerEnv(): boolean;
/**
 * check if run in an iframe
 *
 * @returns boolean
 */
export declare function isIframe(): boolean;
/**
 * we cannot send functions through postMessage
 * extract the path to all functions in the schema
 *
 * @param obj
 */
export declare function extractMethods(obj: any): Record<string, (...args: any) => any>;
/**
 * convert the url into an origin (remove paths)
 *
 * @param url
 */
export declare function getOriginFromURL(url: string | null): string | null;
export declare function resolveTargetOrigin(origin?: string | null): string;
export declare function get(obj: any, path: string | Array<string | number>, defaultValue?: any): any;
export declare function set(obj: any, path: string | (string | number)[], value: any): any;
export declare function generateId(length?: number): string;
/**
 * Get the appropriate target host for messaging based on the current environment
 * @returns The messaging target for the current environment
 */
export declare function getTargetHost(): any;
/**
 * Send a message to a target, handling different environments (iframe, web worker, node worker)
 * @param target The target to send the message to
 * @param message The message to send
 * @param origin Optional origin for iframe communication
 * @param transferables Optional transferables for postMessage
 */
export declare function postMessageToTarget(target: Target, message: any, origin?: string | null, transferables?: Transferable[]): void;
export declare function isNodeWorker(guest: Guest | Target): guest is NodeWorker;
export declare function isWorkerLike(guest: Guest): guest is WorkerLike;
export declare function addEventListener(target: Target, event: string, handler: EventListenerOrEventListenerObject): void;
export declare function removeEventListener(target: Target, event: string, handler: EventListenerOrEventListenerObject): void;
/**
 * Normalize message event data across Web and Node.js environments
 * In web, data is in event.data
 * In Node.js, the event itself contains the data
 */
export declare function getEventData(event: any): any;
export {};