{%- for folder_or_file in view_object.document_tree_iterator.iterator(): -%}
{%- set last_class_or_none = '' -%}
{%- if loop.last or (loop.nextitem and loop.nextitem.level < folder_or_file.level) -%}
{%- set last_class_or_none = 'last-in-level' -%}
{%- endif -%}
{%- if folder_or_file.is_folder(): %}
{{ folder_or_file.folder_name }}/
{% else %}
{%- set document = view_object.traceability_index.document_tree.get_document_by_path(folder_or_file.get_full_path()) %}