import type { i18n as I18nInstance } from 'i18next';
import type { ChatConfig } from '../types/index.ts';
export interface SettingsState {
    config: ChatConfig;
    activeTheme: string;
    language: string;
    setConfig(patch: Partial<ChatConfig>): void;
    setTheme(id: string): void;
    setLanguage(lang: string): void;
}
/**
 * Creates one createChat() instance's settings store. Each instance gets its own store (see
 * StoreContext.tsx) so simultaneous instances on the same page don't share config/theme.
 * `namespace` scopes the localStorage key so simultaneous instances don't persist over each
 * other either; omit it to keep the default key (matches pre-multi-instance behaviour for the
 * common single-widget-per-page case).
 */
export declare function createSettingsStore(i18nInstance: I18nInstance, namespace?: string): import("zustand").UseBoundStore<Omit<import("zustand").StoreApi<SettingsState>, "setState" | "persist"> & {
    setState(partial: SettingsState | Partial<SettingsState> | ((state: SettingsState) => SettingsState | Partial<SettingsState>), replace?: false | undefined): unknown;
    setState(state: SettingsState | ((state: SettingsState) => SettingsState), replace: true): unknown;
    persist: {
        setOptions: (options: Partial<import("zustand/middleware").PersistOptions<SettingsState, SettingsState, unknown>>) => void;
        clearStorage: () => void;
        rehydrate: () => Promise<void> | void;
        hasHydrated: () => boolean;
        onHydrate: (fn: (state: SettingsState) => void) => () => void;
        onFinishHydration: (fn: (state: SettingsState) => void) => () => void;
        getOptions: () => Partial<import("zustand/middleware").PersistOptions<SettingsState, SettingsState, unknown>>;
    };
}>;