/**
 * @author Thomas Barnekow
 * @license MIT
 */
import { Stringifyable, XObject, XName } from './internal.js';
/**
 * Represents an XML attribute.
 */
export declare class XAttribute extends XObject {
    /**
     * Initializes a new instance.
     *
     * @param name The name of the attribute.
     * @param value The value of the attribute.
     */
    constructor(name: XName | string, value: Stringifyable);
    /**
     * Gets an empty collection of attributes.
     */
    static readonly emptySequence: Iterable<XAttribute>;
    private static validateAttribute;
    /**
     * Gets a value indicating if this attribute is a namespace declaration.
     */
    get isNamespaceDeclaration(): boolean;
    /**
     * Gets the name of this attribute.
     */
    get name(): XName;
    /**
     * Gets the next attribute of the parent element.
     */
    get nextAttribute(): XAttribute | null;
    /**
     * Gets the value of this attribute.
     */
    get value(): string;
    /**
     * Sets the value of this attribute.
     */
    set value(value: string);
    /**
     * Removes this attribute from its parent.
     */
    remove(): void;
    /**
     * Gets the XML text representation of an attribute and its value.
     *
     * @returns The XML text representation of an attribute and its value.
     */
    toString(): string;
}