import { Subject } from 'rxjs';
import { OccInfo } from './occ-info';
/**
 * This is a manager of OpenCascade worker. Promisified API allows to deal with the worker in a more natural way
 * and because all those CAD algorithms are quite heavy this does make a lot of sense at this time.
 */
export declare class OCCTWorkerManager {
    occWorkerState$: Subject<OccInfo>;
    errorCallback: (err: string) => void;
    private occWorker;
    private promisesMade;
    constructor();
    occWorkerAlreadyInitialised(): boolean;
    setOccWorker(worker: Worker): void;
    cleanPromisesMade(): void;
    genericCallToWorkerPromise(functionName: string, inputs: any): Promise<any>;
    /**
     * This needs to be done before every run and the promise needs to be awaited before run executes again
     * This makes sure that cache keeps the objects and hashes from the previous run and the rest is deleted
     * In this way it is possible to hace the cache of manageable size
     */
    startedTheRun(): Promise<any>;
    /**
     * This needs to be done before every run and the promise needs to be awaited before run executes again
     * This makes sure that cache keeps the objects and hashes from the previous run and the rest is deleted
     * In this way it is possible to hace the cache of manageable size
     */
    cleanAllCache(): Promise<any>;
}