/**
 * XML building and parsing utilities for the Spok SmartSuite TCP API.
 * Uses regex-based parsing to avoid external XML dependencies.
 */
import { SpokResponse } from "./types";
/** XML namespace for Amcom request elements. */
export declare const REQUEST_NS = "http://xml.amcomsoft.com/api/request";
/**
 * Escape special XML characters.
 */
export declare function escapeXml(str: string): string;
/**
 * Unescape XML entities.
 */
export declare function unescapeXml(str: string): string;
/**
 * Build an Amcom XML request body.
 * @param method - Amcom API method name (e.g. "GetListingInfo").
 * @param params - Optional parameter name-value pairs.
 * @returns XML request string.
 */
export declare function buildRequestXml(method: string, params?: Record<string, string | null | undefined>): string;
/**
 * Parse child elements of an XML fragment into an object.
 */
export declare function parseChildrenToObject(xml: string): Record<string, any>;
/**
 * Parse an XML string into a plain JS object.
 * Handles nested elements, repeating elements (converted to arrays), and text content.
 */
export declare function parseXmlToObject(xml: string): Record<string, any> | string | null;
/**
 * Parse an Amcom procedureResult XML response.
 * Handles success/failure branches, embedded xml_result, and self-closing null parameters.
 */
export declare function parseResponseXml(xmlText: string): SpokResponse;