Context Arguments in Ruby

article_template.rb

class ArticleTemplate
 #TODO: Extract title and author into header method
 #TODO: Extract body into its own method
 #TODO: Don't hard-code text

 def initialize
  Prawn::Document.generate("tmp/production.pdf") do
   text "The Prince", :align => :center, :size => 18
   text "Niccolò Machiavelli", :align => :center, :size => 14
   move_down 12
   text "All the States and Governments ..."
  end
 end
end