import { BehaviorSubject, Observable } from 'rxjs';
import * as i0 from "@angular/core";
export declare class PrintService {
    isPrinting: BehaviorSubject<boolean>;
    constructor();
    /**
     * Get the isPrint variable value.
     */
    getIsPrinting(): Observable<boolean>;
    /**
     * Update the isPrinting variable value.
     *
     * @param val
     */
    updateIsPrinting(val: boolean): void;
    /**
     * Call the system print function.
     */
    print(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<PrintService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<PrintService>;
}