```yaml name=config
args:
required:
```
```Containerfile name=main
RUN echo {{ enabled }} {{ disabled }} {{ message }}
RUN echo {{ count + 1 }} {{ negative }} {{ fraction + 0.5 }}
{% if enabled %}RUN echo enabled{% else %}RUN echo unexpected-enabled{% endif %}
{% if disabled %}RUN echo unexpected-disabled{% else %}RUN echo disabled{% endif %}
```