md-paginator how i can get the next or prev click event

I want to get the next button click event any idea how I can make it

<md-paginator [length]="length"
    [pageSize]="pageSize"
    [pageSizeOptions]="pageSizeOptions"
    (page)="pageEvent = $event"
    (selectChange)="onPaginateChange($event)">   <---------  not working
</md-paginator>