/**
 * XmlToJson — XML → JSON conversion
 * ───────────────────────────────────
 * Converts an XmlDocument or XmlElement into a plain JavaScript object /
 * JSON-serialisable value.
 *
 * Conversion rules
 * ────────────────
 *  • Element with text-only children → { tag: string, _text: string, ...attrs }
 *  • Element with element children   → { tag: string, children: [...], ...attrs }
 *  • Attributes are hoisted to the same level with '@' prefix by default
 *  • Multiple sibling elements with the same tag are collected into arrays
 *  • CDATA sections are treated the same as text nodes
 *  • Comments and processing instructions are skipped by default
 *
 * Usage
 * ─────
 *  import { xmlToJson } from 'xml-xsd-engine/transform';
 *
 *  const obj  = xmlToJson(doc);
 *  const json = JSON.stringify(obj, null, 2);
 */
import { XmlDocument, XmlElement } from '../parser/XmlNodes';
export interface XmlToJsonOptions {
    /**
     * Prefix for attribute keys in the output object.
     * Default: '@'  (e.g. attribute "id" becomes "@id")
     * Set to '' to omit prefix.
     */
    attributePrefix?: string;
    /**
     * Key used for text content when an element also has attributes or
     * element children.  Default: '_text'
     */
    textKey?: string;
    /**
     * Whether to include XML comments in the output.  Default: false
     */
    includeComments?: boolean;
    /**
     * When true, an element with a single text child is collapsed to a plain
     * string value instead of an object.  Default: true
     *
     * e.g.  <name>Alice</name>  →  "Alice"   (not { _text: "Alice" })
     */
    collapseText?: boolean;
    /**
     * When true, numeric-looking text values are coerced to numbers.
     * Default: false
     */
    coerceNumbers?: boolean;
    /**
     * When true, "true"/"false" text values are coerced to booleans.
     * Default: false
     */
    coerceBooleans?: boolean;
    /**
     * Whether to include the element tag name in the output object.
     * Default: false  (tag name is the key in the parent object)
     */
    includeTagName?: boolean;
}
export type JsonValue = string | number | boolean | null | JsonObject | JsonValue[];
export interface JsonObject {
    [key: string]: JsonValue;
}
/**
 * Convert an XmlDocument or XmlElement into a JSON-serialisable object.
 */
export declare function xmlToJson(node: XmlDocument | XmlElement, options?: XmlToJsonOptions): JsonObject;
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