How to use the react-big-calendar.Views.WEEK function in react-big-calendar

let CustomView = ({ localizer }) => (
  
    
      <strong>The Calendar below implments a custom 3-day week view</strong>
    
    
  
)

render() {
    const { localizer } = this.props
    return (
      <>
        
          <strong>
            Click an event to see more info, or drag the mouse over the calendar
            to select a date/time range.
          </strong>
        
         alert(event.title)}
          onSelectSlot={this.handleSelect}
        /&gt;
      
    )
  }
}

let Timeslots = ({ localizer }) => (
  
)