/**
 * Converts a value to a string using advanced serialization.
 * @param value - The value to convert to a string.
 * @returns A string representation of the value.
 */
export declare const toStringValue: (value: unknown) => string;
/**
 * Extracts parameter names and their default values from a function by parsing its source.
 * Supports both synchronous and async functions (returning R or Promise<R>).
 *
 * @param fn - The function to inspect (sync or async).
 * @returns An array of parameter descriptors with name and optional default value.
 */
export declare const extractParamsInfo: <T extends unknown[], R>(fn: (...args: T) => R | Promise<R>) => {
    name: string;
    defaultValue?: unknown;
}[];
/**
 * Converts function arguments to a dictionary using parameter names and default values
 */
export declare const argsToDict: <T extends unknown[]>(paramsInfo: {
    name: string;
    defaultValue?: unknown;
}[], args: T) => Record<string, unknown>;
/**
 * Convert a record with arbitrary values to a Record<string, string> by converting
 * all values to their string representations.
 *
 * @param metadata - The metadata object with potentially complex values
 * @returns A new object with all values converted to strings
 */
export declare const toStringRecord: (metadata: Record<string, unknown>) => Record<string, string>;