import type { NotiflyInitializeOptions, SetUserIdOptions } from './Core/Interfaces/Options';
import { Language } from './Core/Interfaces/RequestPermissionPromptDesignParams';
import { type SdkType } from './Core/SdkState';
/**
 * @summary Initializes the Notifly SDK. All the other SDK commands will be executed only after the SDK is initialized.
 *
 * @async
 */
export declare function initialize(options: NotiflyInitializeOptions): Promise<boolean>;
/**
 * @summary Tracks an event with the given name and parameters.
 *
 * @async
 *
 * @example
 * trackEvent('my_event', { key1: 'value1', key2: 'value2' });
 */
export declare function trackEvent(eventName: string, eventParams?: Record<string, any>, segmentationEventParamKeys?: string[] | null): Promise<void>;
/**
 * Sets or removes user ID for the current user.
 *
 * @summary If the user ID is null or undefined, the user ID will be removed. Otherwise, the user ID will be set to the provided value.
 *
 * @async
 *
 * @example
 * setUserId('myUserID') // Sets the user ID to 'myUserID'
 * setUserId(null) // Removes the user ID
 * setUserId() // Removes the user ID
 */
export declare function setUserId(userId?: string | null | undefined, options?: SetUserIdOptions): Promise<void>;
/**
 * @summary Removes the external user ID and Notifly user ID from localForage.
 *
 * @async
 *
 * @example
 * removeUserId();
 */
export declare function removeUserId(options?: SetUserIdOptions): Promise<void>;
/**
 * Sets user properties for the current user.
 *
 * @async
 *
 * @example
 * setUserProperties({ name: 'John Doe', age: 42 });
 */
export declare function setUserProperties(params: Record<string, any>): Promise<void>;
/**
 * Sets phone number for the current user.
 *
 * @async
 *
 * @example
 * setEmail('team@greyboxhq.com');
 */
export declare function setEmail(email: string): Promise<void>;
/**
 * Sets phone number for the current user.
 *
 * @async
 *
 * @example
 * setPhoneNumber('01012345678');
 */
export declare function setPhoneNumber(phoneNumber: string): Promise<void>;
/**
 * Sets timezone for the current user.
 * Timezone identifier must be a valid non-empty string.
 *
 * @see
 * https://en.wikipedia.org/wiki/List_of_tz_database_time_zones
 *
 * @param tz - Timezone identifier. e.g. 'Asia/Seoul', 'America/New_York'
 *
 * @async
 *
 * @example
 * setTimezone('Asia/Seoul');
 * setTimezone('America/New_York');
 */
export declare function setTimezone(tz: string): Promise<void>;
/**
 * Gets the current user ID.
 *
 * @async
 *
 * @example
 * const currentUserId = await getUserId();
 */
export declare function getUserId(): Promise<string | null>;
/**
 * Gets the user properties for the current user.
 *
 * @async
 *
 * @example
 * const userProperties = await getUserProperties();
 */
export declare function getUserProperties(): Promise<Record<string, any> | null>;
/**
 * @summary Requests permission from the user to send web push notifications.
 *
 * @async
 *
 * @param languageToForce - The language to force for the permission prompt. If not provided, the browser preferred language will be used. The language should be one of the 'ko', 'en', 'ja', 'zh'
 */
export declare function requestPermission(languageToForce?: Language): Promise<void>;
export declare function setSdkType(sdkType: SdkType): void;
export declare function getSdkVersion(): string;
export declare function setSdkVersion(sdkVersion: string): void;
export declare function setSource(source: 'cafe24' | null): void;
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