views/partials/feature-steps.hbs
{{#if steps}}
<section class="steps">
{{#each steps}}
{{> feature_step}}
{{#if this.argument}} <!-- arguments as in data tables and doc strings -->
{{> (lookup this.argument 'type') this.argument}} <!-- select the partial based on the argument type -->
{{/if}}
{{/each}}
</section>
{{/if}}