import { LitElement, nothing, CSSResultGroup, TemplateResult } from 'lit';
import { CustomDataEntry } from '../types';
export declare class StartChatForm extends LitElement {
    static readonly styles: CSSResultGroup;
    submitted: boolean;
    customData: CustomDataEntry[];
    customerName: string;
    validationErrors: string[];
    showValidationWarning: boolean;
    private readonly application;
    private readonly emailController;
    constructor();
    connectedCallback(): void;
    _onStartChat(event: SubmitEvent): void;
    _customDataValueChanged(value: any, entry: CustomDataEntry): void;
    validateCustomDataEntry(entry: CustomDataEntry): void;
    render(): TemplateResult | typeof nothing;
}