How to pass array to class option of rails generator?

[gotqn]

I'm creating the following ruby class generator:

 class Template < Rails::Generators::Base
       source_root File.expand_path('../templates', __FILE__)

         argument :name, type: 'string', required: true
          ...
         class_option :templates, type: 'array', default: [1, 2, 3, 4], aliases: '-t'

       private
       ...
   end

In the rails console I tried:

rails generate template test -t=1 2 
rails generate template test -t 1 2 
rails generate template test -t 1,2
rails generate template test -t=1,2  
rails generate template test -t=[1,2]
rails generate template test -t [1,2]

but the generator is not working correctly. It seems that the input doesn't return an array, because the following private method is not working:

def should_be_template_rendered(param)
   options.templates.include? param
end

Where param is simply a number. The result is that none of the templates are rendered at all. I have checked the Thor documentation, but was not able to find an example on how the array is passed as argument.

I am using Ruby 2.0, Rails 4.0 and Thor (0.18.1).

[begin29]

I did it successfully with

thor some_namespace:some_task --client_ids 1 2 3 4 5 6

and get params inside thor file as options[:client_ids]