# 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