text: import { any, string } from 'prop-types'
  import React, { PureComponent } from 'react'
  import { NotificationContainer } from 'react-notifications'
  
  export class App extends PureComponent {
      render() {
          const { year, children } = this.props
  
          return (
              <div>
                  <NotificationContainer />
                  <div className="main-app">
                      <p>{`The year is ${year}`}</p>
                      {children}
                  </div>
              </div>
          )
      }
  }
  
  App.propTypes = {
      year: string,
      children: any
  }
  