import '@nativescript/core/globals';
import type { Optional } from '@nativescript/core/utils/typescript-utils';
import { EventData, Observable } from '@nativescript/core';
export type WorkerEventType = 'event' | 'error' | 'started' | 'terminate';
export interface WorkerPostOptions {
    id?: number;
    messageData?: string;
}
export type WorkerPostEvent = {
    type: string;
} & WorkerPostOptions;
export interface WorkerEvent {
    data: {
        messageData?: any;
        error?: Error;
        nativeData?: {
            [k: string]: any;
        };
        type: string;
        id?: number;
    };
}
export interface IWorker extends BaseWorker {
    onmessage: Function;
    postMessage(event: WorkerPostEvent): any;
}
export declare abstract class BaseWorker extends Observable {
    protected context: any;
    constructor(context: any);
    onmessage: Function;
    postMessage(event: WorkerPostEvent): void;
    abstract receivedMessage(event: WorkerEvent): any;
    receivedMessageBase(event: WorkerEvent): boolean;
    messagePromises: {
        [key: string]: {
            resolve: Function;
            reject: Function;
            timeoutTimer: number;
        }[];
    };
    postPromiseMessage<T = any>(type: string, messageData: any, id?: number, timeout?: number, nativeData?: any): Promise<T>;
    stop(error?: any, id?: any): Promise<void>;
    notify<T extends Optional<EventData & {
        error?: Error;
    }, 'object'>>(data: T): void;
    notifyAndAwait<T = any>(eventName: any, data: any): Promise<T>;
    sendError(error: any): Promise<void>;
}