To give our consumers additional flexibility, I'd adjust this method signature to something like:
 
```ruby
def blacklight_map_tag id, tag_options = {}, &block
  ...
  content_tag(:div, { id: id  data: ...}.deep_merge(tag_options), &block)
end
```

This (sorta) mirrors the regular `#content_tag` signature, and allows the caller to add additional attributes and the like to this div.