How to change style or add over component on headers of v-data-table on vuetify3

I want to add some specific changes on the header of v-data-table like this:

DATE | Libelle <v-chip>(No count)</v-chip> |TYPE 

Anyone does have any ideas how to do that?

const headers = [
  { title: 'DATE', align: 'start', key: 'date', sortable: true, },
  { title: 'LIBELLÉ', align: 'start', key: 'libelle', width: '25%' },
  { title: 'TYPE', align: 'start', key: 'type', width: '10%' },
];