/**
 * Initializes a calculator function with exchange rates
 * @param {object} exchange - Exchange rates object
 * @return {Function} - Configured calculator function
 * @example calculatorInitialization({ $: 100 })("$1"); // "100"
 * @example calculatorInitialization({ EUR: 1.2 })("EUR5 + 10"); // "16"
 */
export declare const calculatorInitialization: <T extends {
    [key: string]: string | number;
}>(exchange: T) => ((x: string) => string);