docs: protected void _format(SarlRequiredCapacity requiredCapacity, IFormattableDocument document) {
  		final ISemanticRegionsFinder regionFor = this.textRegionExtensions.regionFor(requiredCapacity);
  		document.append(regionFor.keyword(this.keywords.getRequiresKeyword()), ONE_SPACE);
  		formatCommaSeparatedList(requiredCapacity.getCapacities(), document);
  		document.prepend(regionFor.keyword(this.keywords.getSemicolonKeyword()), NO_SPACE);
  	}