import { ActionsObservable, StateObservable } from 'redux-observable';
import { Observable } from 'rxjs';
import { RootState } from '../../../rootStateTypes';
import { fetchInvoicingPaymentLinkEmailPreview, fetchInvoicingPaymentLinkEmailPreviewPage } from './editInvoicingCustomerDetailViewReducer';
export type ActionType = ReturnType<typeof fetchInvoicingPaymentLinkEmailPreview> | ReturnType<typeof fetchInvoicingPaymentLinkEmailPreviewPage>;
/**
 * Opening the composer asks for the preview at most once per customer: a
 * cached one is reused, and switching customer invalidates it.
 */
export declare const fetchInvoicingPaymentLinkEmailPreviewPageEpic: (actions$: ActionsObservable<ActionType>, state$: StateObservable<RootState>) => Observable<ActionType>;