import { BaseModel } from './base-model';
import { Party } from './party';
import { InvoiceLine } from './invoice-line';
import { TaxTotal } from './tax-total';
import { InvoicePeriod } from './invoice-period';
import { DocumentReference } from './document-reference';
/**
 * Represents an invoice document
 */
export declare class Invoice extends BaseModel {
    private _id;
    private _issueDate;
    private _invoiceTypeCode;
    private _documentCurrencyCode;
    private _taxCurrencyCode;
    private _supplier;
    private _customer;
    private _invoicePeriod;
    private _additionalDocumentReferences;
    private _lineExtensionAmount;
    private _taxExclusiveAmount;
    private _taxInclusiveAmount;
    private _allowanceTotalAmount;
    private _chargeTotalAmount;
    private _payableRoundingAmount;
    private _payableAmount;
    private _taxTotal;
    private _invoiceLines;
    get id(): string;
    set id(value: string);
    get issueDate(): Date;
    set issueDate(value: Date);
    get invoiceTypeCode(): string;
    set invoiceTypeCode(value: string);
    get documentCurrencyCode(): string;
    set documentCurrencyCode(value: string);
    get taxCurrencyCode(): string;
    set taxCurrencyCode(value: string);
    get supplier(): Party;
    set supplier(value: Party);
    get customer(): Party;
    set customer(value: Party);
    get invoicePeriod(): InvoicePeriod;
    set invoicePeriod(value: InvoicePeriod);
    get additionalDocumentReferences(): DocumentReference[];
    set additionalDocumentReferences(value: DocumentReference[]);
    addDocumentReference(reference: DocumentReference): void;
    get lineExtensionAmount(): number;
    set lineExtensionAmount(value: number);
    get taxExclusiveAmount(): number;
    set taxExclusiveAmount(value: number);
    get taxInclusiveAmount(): number;
    set taxInclusiveAmount(value: number);
    get allowanceTotalAmount(): number;
    set allowanceTotalAmount(value: number);
    get chargeTotalAmount(): number;
    set chargeTotalAmount(value: number);
    get payableRoundingAmount(): number;
    set payableRoundingAmount(value: number);
    get payableAmount(): number;
    set payableAmount(value: number);
    get taxTotal(): TaxTotal;
    set taxTotal(value: TaxTotal);
    get invoiceLines(): InvoiceLine[];
    set invoiceLines(value: InvoiceLine[]);
    addInvoiceLine(line: InvoiceLine): void;
    /**
     * Calculate totals based on invoice lines
     */
    calculateTotals(): void;
    /**
     * Converts the invoice to a JSON representation
     */
    toJSON(): any;
}