export declare class IntergiroCheckoutDemo {
  element: HTMLElement;
  apiKey: string | undefined;
  private features?;
  private testKeys;
  private customKeyInput;
  isKey?: boolean;
  private customAmountInput;
  private items?;
  itemsWarning?: boolean;
  keyInputChange(_: Event): Promise<void>;
  itemsInputChange(_: Event): void;
  render(): any;
}
