import util from 'node:util';
/**
 * Type representing a string formatted by `rs`.
 * An extension of `String`.
 */
export declare class RsString extends String {
    /**
     * A version of the string that includes ANSI escape codes for debug formatting.
     */
    colored: string;
    constructor(strings: TemplateStringsArray, params: any[]);
    toString(debugColors?: boolean): string;
}
/**
 * Format a template literal with rust-style formatting and return it as a raw and colored string.
 *
 * @param strings String parts of the template
 * @param params Template parameters
 *
 * @returns An object with raw and colored versions of the formatted parameter
 */
export declare function buildString(strings: TemplateStringsArray, params: any[]): {
    raw: string;
    colored: string;
};
type AlignDirection = '<' | '^' | '>';
type Sign = '-' | '+' | '';
type FormatType = '?' | 'o' | 'x' | 'X' | 'b' | 'e' | 'E' | 'n' | 'N' | '';
type FormatSpecifier = {
    fill: string;
    align: AlignDirection;
    force_sign: Sign;
    pretty: boolean;
    pad_zeroes: boolean;
    width: number;
    precision: number;
    type: FormatType;
};
/**
 * Format a parameter as a string according to a specifier.
 *
 * @param param parameter to format
 * @param format format specifier object
 * @returns `param` as a debug-colored and raw formatted string
 */
export declare function formatParam(param: any, format: FormatSpecifier): [string, string];
/** Re-export of node's `util.styleText`. */
export declare const style: typeof util.styleText;
export {};