import type { ChartKitHolidays, ChartKitLang, ChartKitPlugin } from '../../types';
import { EventEmitter } from './eventEmitter';
interface Settings {
    plugins: ChartKitPlugin[];
    lang: ChartKitLang;
    extra?: {
        holidays?: ChartKitHolidays;
    };
}
type SettingKey = keyof Settings;
type SettingsEventsMap = {
    'change-lang': ChartKitLang;
};
export declare const settingsEventEmitter: EventEmitter<SettingsEventsMap>;
declare class ChartKitSettings {
    private settings;
    constructor();
    get<T extends SettingKey>(key: T): Settings[T];
    set(updates: Partial<Settings>): void;
}
export declare const settings: ChartKitSettings;
export {};