export declare const invalidKeyChars: readonly ["@", "/", "#", "$", " ", ":", ";", ",", ".", "!", "?", "&", "=", "+", "-", "*", "%", "^", "~", "|", "\\", "\"", "'", "`", "{", "}", "[", "]", "(", ")", "<", ">"];
/**
 * Stringify a value to a JSON-like string.
 *
 * @param value - The value to stringify
 * @param spacing - The spacing to use for the stringification
 * @returns The stringified value
 */
export declare const stringify: (value: unknown, spacing?: string | number) => string;