Simple component tag using Django 5.2 simple_block_tag

templatetags.py

@register.simple_block_tag(takes_context=True)
def fragment(
    context: Context,
    content: str,
    fragment_name: str,
    **extra_context,
) -> str:
    """Renders a block fragment.

    Fragment name is resolved to a template name for example:

        {% fragment "pagination.links" id="pagination" %}
            my content here...
        {% endfragment %}

    resolves to the template name "pagination/links.html":

        <ul id="{{ id }}">
            {{ content }} # content inserted here
        </ul>
    """
    template = context.template.engine.get_template(  # type: ignore[reportOptionalMemberAccess]
        _resolve_fragment_template(fragment_name),
    )

    with context.push(content=content, **extra_context):
        return template.render(context)