import { BaseModel } from './base-model';
import { TaxSubtotal } from './tax-subtotal';
import { InvoiceLine } from './invoice-line';
/**
 * Represents tax total information
 */
export declare class TaxTotal extends BaseModel {
    private _taxAmount;
    private _taxableAmount;
    private _taxType;
    private _taxRate;
    private _taxExemptionReason;
    private _taxSubtotals;
    get taxAmount(): number;
    set taxAmount(value: number);
    get taxableAmount(): number;
    set taxableAmount(value: number);
    get taxType(): string;
    set taxType(value: string);
    get taxRate(): number;
    set taxRate(value: number);
    get taxExemptionReason(): string;
    set taxExemptionReason(value: string);
    get taxSubtotals(): TaxSubtotal[];
    /**
     * Add a tax subtotal
     * @param subtotal The tax subtotal to add
     */
    addTaxSubtotal(subtotal: TaxSubtotal): void;
    /**
     * Calculate tax totals based on invoice lines
     * @param invoiceLines The invoice lines to calculate tax totals from
     */
    calculateTotals(invoiceLines: InvoiceLine[]): void;
    /**
     * Converts the tax total to a JSON representation for the invoice level
     */
    toJSON(): any;
    /**
     * Converts the tax total to a JSON representation for the line level
     */
    toLineJSON(): any;
}