import { default as React, ReactElement } from 'react';
import { AvatarProps } from './avatar';
export declare const IS_AVATAR: unique symbol;
/**
 * Type guard that checks whether a React node is an Avatar component.
 *
 * Identifies Avatar elements by the internal {@link IS_AVATAR} symbol
 * attached to the component type.
 *
 * @param el - React node to test.
 * @returns `true` if the node is an Avatar element.
 *
 * @internal
 */
export declare function isAvatar(el: React.ReactNode): el is ReactElement<AvatarProps>;