How to pass custom option to article creation command?

I hope I could do like below

$ middleman article --category mycategory "My title"

And inside article.erb,

---
title: <%= @title %>
date: <%= @date.strftime('%F %R %z') %>
category: <%= @category %>
---

I want to pass a category kind to article template from command line like above.
Is there any way to do this? Thanks, in advance.