# File lib/puppet/parameter.rb, line 40
40:     def doc
41:       @doc ||= ""
42: 
43:       unless defined?(@addeddocvals)
44:         @doc += value_collection.doc
45: 
46:         if f = self.required_features
47:           @doc += "  Requires features #{f.flatten.collect { |f| f.to_s }.join(" ")}."
48:         end
49:         @addeddocvals = true
50:       end
51: 
52:       @doc
53:     end