# File lib/fog/aws/elasticache.rb, line 145
        def self.data
          @data ||= Hash.new do |hash, region|
            hash[region] = Hash.new do |region_hash, key|
              region_hash[key] = {
                :clusters  => {}, # cache cluster data, indexed by cluster ID
                :security_groups => {}, # security groups
                :subnet_groups => {},
                :parameter_groups => {"default.memcached1.4" => { "CacheParameterGroupFamily"=>"memcached1.4",
                                                                  "Description"=>"Default parameter group for memcached1.4",
                                                                  "CacheParameterGroupName"=>"default.memcached1.4"
                                                                },
                                      "default.redis2.6" =>     {"CacheParameterGroupFamily"=>"redis2.6",
                                                                 "Description"=>"Default parameter group for redis2.6",
                                                                 "CacheParameterGroupName"=>"default.redis2.6"
                                                                }
                                      }
                                  }
            end
          end
        end