title: How do I use define_method to create class methods?
body: <p>This is useful if you are trying to create class methods metaprogramatically:</p>
  
  <pre><code>def self.create_methods(method_name)
      # To create instance methods:
      define_method method_name do
        ...
      end
  
      # To create class methods that refer to the args on create_methods:
      ???
  end
  </code></pre>
  
  <p>My answer to follow...</p>