tabler/pages/_includes/parts/form/input-datalist.html

<div class="mb-3">
   <label class="form-label">Datalist example</label>
   <input class="form-control" list="datalistOptions" placeholder="Type to search..."/>
   <datalist id="datalistOptions">
      {% for country in flags limit: 10 %}
      <option value="{{ country.name | escape }}"/>{% endfor %}
   </datalist>
</div>