netbox-community-netbox/netbox/utilities/templates/buttons/bulk_edit.html

{% load i18n %}
{% if url %}
  <button type="submit" name="_edit" formaction="{{ url }}" class="btn btn-warning btn-sm">
    <i class="mdi mdi-pencil" aria-hidden="true"></i> {% trans "Edit Selected" %}
  </button>
{% endif %}