import { OnInit, ChangeDetectorRef } from '@angular/core';
import { PurchaseService } from '@schoolbelle/api/purchase';
import { FormControl, FormArray, FormGroup } from '@angular/forms';
import { Subscription } from 'rxjs';
export declare class CostDetailsComponent implements OnInit {
    protected purchase: PurchaseService;
    protected cdRef: ChangeDetectorRef;
    form: FormGroup;
    products: FormArray;
    paymentCurrency: FormControl;
    taxRate: FormControl;
    protected subscriptions: Subscription;
    constructor(purchase: PurchaseService, cdRef: ChangeDetectorRef);
    ngOnInit(): void;
    ngOnDestroy(): void;
    readonly monthly_price_amount: number;
    readonly none_monthly_price_amount: number;
    readonly price_amount: number;
    readonly months: number;
}