```ruby
module Mixins
  module GenericListMixin
    def index
      redirect_to :action => 'show_list'
    end

    def show_list
      @showtype = nil
      @center_toolbar = self.class.toolbar_plural if self.class.toolbar_plural
      process_show_list
    end
  end
end
```

Fix rubocop warning in GemericListMixin
user
```ruby
module Mixins
  module GenericListMixin
    def index
      redirect_to(:action => 'show_list')
    end

    def show_list
      @showtype = nil
      @center_toolbar = self.class.toolbar_plural if self.class.toolbar_plural
      process_show_list
    end
  end
end
```
assistant