import * as React from 'react'; import { EmitterSubscription, ViewProperties } from 'react-native'; declare class PassKit { static canAddPasses(): Promise; static addPass(base64Encoded: string, fileProvider?: string): Promise; static presentAddPassesViewController(base64Encoded: string): Promise; static addEventListener( eventType: string, listener: Function, context?: Object, ): EmitterSubscription; static removeEventListener(eventType: string, listener: Function): void; } interface AddPassButtonProps extends ViewProperties { addPassButtonStyle: number; onPress: Function; } export declare class AddPassButton extends React.Component< AddPassButtonProps > {} export default PassKit;