import type { Config } from '../createConfig';
import type { GetChainIdReturnType } from './getChainId';
export type WatchChainIdParameters<config extends Config = Config> = {
    onChange(chainId: GetChainIdReturnType<config>, prevChainId: GetChainIdReturnType<config>): void;
};
export type WatchChainIdReturnType = () => void;
export declare function watchChainId<config extends Config>(config: config, parameters: WatchChainIdParameters<config>): WatchChainIdReturnType;