/**
 * Utility functions for AWS API Gateway VTL templates ($util.*)
 * Matches the behavior of the Java implementation
 */
export declare class UtilFunctions {
    /**
     * Escapes a string for use in JavaScript
     * Handles Map/List objects by converting them to JSON first
     */
    escapeJavaScript(input: any): string;
    /**
     * Base64 encode a string
     */
    base64Encode(input: string): string;
    /**
     * Base64 decode a string
     */
    base64Decode(input: string): string;
    /**
     * Parse a JSON string into an object
     * Returns the original string if parsing fails
     */
    parseJson(jsonString: string): any;
    /**
     * URL encode a string
     */
    urlEncode(input: string): string;
    /**
     * URL decode a string
     */
    urlDecode(input: string): string;
}
//# sourceMappingURL=UtilFunctions.d.ts.map