import { LocaleType } from "../../../interfaces/types";
export declare function isDefined<T>(argument: T | undefined | null): argument is T;
export declare function isNullOrUndefinedOrEmptyString<T>(argument: T | null | undefined | ''): argument is T;
export declare function trimObjectForQuery(object: {
    [k: string]: string | number | null | undefined;
}): {
    [k: string]: string | number;
};
export declare function numberWithCommas(x: number | string): string;
export declare function currencyFormat(x: number | string, locale: LocaleType, currency: string): string;