import { ElementRef, Injector } from '@angular/core';
import { Overlay } from '@angular/cdk/overlay';
import { TestDataModalRef } from './test-data-modal-ref';
import { TEST_DATA_MODAL_EDIT_IN_DEPTH, TestDataModalData } from './test-data-modal-data';
import * as i0 from "@angular/core";
export declare type TestDataModalResult = string | TestDataModalData | undefined | typeof TEST_DATA_MODAL_EDIT_IN_DEPTH;
export declare class TestDataModalService {
    private readonly overlay;
    private readonly injector;
    /** Currently open Test Data overlay ref; only one panel is allowed at a time. */
    private currentRef;
    constructor(overlay: Overlay, injector: Injector);
    /**
     * Opens the Test Data modal positioned just below the given origin element.
     * If a panel is already open, returns the existing ref and does not open a duplicate.
     * @param origin Element (e.g. test data trigger) to position below
     * @param data Initial value, optional help URL, and optional active tab
     * @returns Ref with afterClosed() and close(); afterClosed emits the value on Apply, undefined on Cancel, or EDIT_IN_DEPTH symbol when user clicks "Edit in depth"
     */
    open(origin: ElementRef<HTMLElement>, data: TestDataModalData): TestDataModalRef<TestDataModalResult>;
    static ɵfac: i0.ɵɵFactoryDeclaration<TestDataModalService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<TestDataModalService>;
}