# File lib/rss/maker/2.0.rb, line 56
56:             def to_feed(rss, channel)
57:               category = Rss::Channel::Category.new
58:               set = setup_values(category)
59:               if set
60:                 channel.categories << category
61:                 set_parent(category, channel)
62:                 setup_other_elements(rss, category)
63:               end
64:             end

    # File lib/rss/maker/2.0.rb, line 67
67:             def required_variable_names
68:               %w(content)
69:             end