export declare class Tax {
    #private;
    constructor(amount: number, currency: string, taxRateId: string | null);
    /**
     * Get the applied currency.
     */
    currency(): string;
    /**
     * Get the total tax that was paid (or will be paid).
     */
    amount(): string;
    /**
     * Get the raw total tax that was paid (or will be paid).
     */
    rawAmount(): number;
    /**
     * Format the given amount into a displayable currency.
     */
    formatAmount(amount: number): string;
    /**
     * Get the tax rate ID.
     */
    taxRateId(): string | null;
}