export declare const SEND_STARTED = "send:started";
export declare const SEND_COMPLETED = "send:completed";
export declare const QUEUE_COMPLETED = "queue:completed";
export declare const QUEUE_CONTINUED = "queue:continued";
export declare const VISITOR_TOKEN_KEY = "wt_visitor_token";
export declare const PAGE_UUID_KEY = "wt_page_uuid";
type WTConfig = {
    cookieOptions?: Cookies.CookieAttributes;
    visitorToken?: string;
    fetchConfig?: Omit<RequestInit, 'headers'> & {
        headers?: Record<string, string>;
    };
    trackerDomain?: string;
    onError?: (payload: WTPayload, error: unknown) => void;
    debounce?: {
        min?: number;
        max?: number;
    };
};
type WTEvent = {
    kind?: string;
    category?: string;
    action?: string;
    label?: string;
    value?: string | number | boolean | null;
    page_name?: string;
    container?: string;
    position?: string | number;
    object_type?: string;
    object_name?: string;
    metadata?: Record<string, any>;
    url: string;
    referrer: string | undefined;
    page_uuid: string | null;
    ts: number;
};
export type WTEventParams = {
    kind?: string;
    category?: string;
    action?: string;
    label?: string;
    value?: string | number | boolean | null;
    pageName?: string;
    container?: string;
    position?: string | number;
    objectType?: string;
    objectName?: string;
    metadata?: Record<string, any>;
    schema?: string;
};
export type WTPayload = {
    visitor_token?: string;
    events: WTEvent[];
    dimensions: {
        width: number;
        height: number;
    };
    agent: string;
    rts: number;
    wvt: string | undefined;
};
export declare class FailedFetchError extends Error {
}
export declare class WT {
    loading: boolean;
    private emitter;
    private wtConfig;
    private paramDefaults;
    private eventQueue;
    private pageUuid;
    private context;
    private processEventsDebounced;
    constructor(context: WTContext);
    initialize(config: WTConfig | ((config: WTConfig) => WTConfig)): void;
    getVisitorToken(): string;
    getUUIDToken(): string;
    track(kindOrParams: string | WTEventParams): void;
    flush(): void;
    clear(): void;
    set(defaults: WTEventParams): void;
    config(config: WTConfig | ((currentConfig: WTConfig) => WTConfig)): void;
    subscribe(eventName: string, cb: () => void): () => void;
    private addToQueue;
    private getRoot;
    private sendToServer;
    private getRequestEnvironmentArgs;
    private getEventEnvironmentArgs;
    private processEvents;
    private updateProcessEventsDebounced;
}
export declare function withContext(context: WTContext): WT;
declare const _default: WT;
export default _default;