# File lib/fog/aws/requests/iam/list_groups.rb, line 43
        def list_groups(options = {} )
          #FIXME: Doesn't observe options
          Excon::Response.new.tap do |response|
            response.status = 200
            response.body = { 'Groups' => data[:groups].map do |name, group|
                                            { 'GroupId'   => group[:group_id],
                                              'GroupName' => name,
                                              'Path'      => group[:path],
                                              'Arn'       => (group[:arn]).strip }
                                          end,
                              'IsTruncated' => false,
                              'RequestId' => Fog::AWS::Mock.request_id }
          end
        end