export type NumberLocale = "us" | "eu" | "_";
export declare const defaultLocale: NumberLocale;
export interface NumberPatternParams {
    locale?: NumberLocale;
    digits?: number;
    decimals?: number;
    minDigits?: number;
    maxDigits?: number;
    minDecimals?: number;
    maxDecimals?: number;
}
export declare function buildNumberPatterns({ locale, digits, decimals, minDigits, maxDigits, minDecimals, maxDecimals, }?: NumberPatternParams): {
    INT_PATTERN: RegExp;
    FLOAT_PATTERN: RegExp;
};
export declare const INT_PATTERN_US: RegExp, FLOAT_PATTERN_US: RegExp;
export declare const INT_PATTERN_EU: RegExp, FLOAT_PATTERN_EU: RegExp;
export declare const INT_PATTERN_UNDERSCORE: RegExp, FLOAT_PATTERN_UNDERSCORE: RegExp;
export declare const INT_PATTERN: RegExp, FLOAT_PATTERN: RegExp;
export declare function isInt(s: string, locale?: NumberLocale): boolean;
export declare function isFloat(s: string, locale?: NumberLocale): boolean;
export declare function toInt(s: string, locale?: NumberLocale): number | null;
export declare function toFloat(s: string, locale?: NumberLocale): number | null;
/**
 * Convert number back to string with proper thousands + decimal separator.
 * Fraction digits are preserved by default, but you can control with `minFraction`/`maxFraction`.
 */
export declare function numberToString(n: number, locale?: NumberLocale, opts?: {
    minFraction?: number;
    maxFraction?: number;
}): string;
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