import '@power-elements/stripe-elements';
import { CSSResult, LitElement } from 'lit';
export declare class SkhemataFormStripe extends LitElement {
    static styles: CSSResult[];
    error: any;
    output: any;
    unsupported: boolean;
    publishableKey: string;
    submitDisabled: boolean;
    source: any;
    clientSecret: string;
    contributionSk: string;
    contributionId: string;
    confirmInfo: {};
    stripeElements?: HTMLElement | null;
    stripePaymentRequest?: HTMLElement | null;
    onSource(e: any): void;
    firstUpdated(): Promise<void>;
    render(): import("lit-html").TemplateResult<1>;
}