import { TemplateResult, CSSResultArray } from 'lit';
import NileElement from '../../internal/nile-element';
import '../../nile-button-toggle-group/index';
import '../../nile-button-toggle/index';
/**
 * Special characters picker (the Ω toolbar item). Emits
 * `wysiwyg-char-select` detail: { char } and `wysiwyg-char-cancel`.
 */
export declare class NileWysiwygSpecialChars extends NileElement {
    open: boolean;
    private category;
    static get styles(): CSSResultArray;
    private handleKeydown;
    render(): TemplateResult;
}
declare global {
    interface HTMLElementTagNameMap {
        'nile-wysiwyg-special-chars': NileWysiwygSpecialChars;
    }
}