# File lib/puppet/util/rails/cache_accumulator.rb, line 56
56:     def install_accumulator(attribute)
57:       self.accumulators[attribute] = Base.new(self, attribute)
58:       module_eval %{
59:         def self.accumulate_by_#{attribute.to_s}(*keys)
60:           accumulators[:#{attribute.to_s}].find(*keys)
61:         end
62:       }
63:     end