    # File lib/fog/aws/requests/iam/create_group.rb, line 40
            def create_group(group_name, path = '/')
              if data[:groups].has_key? group_name
                raise Fog::AWS::IAM::EntityAlreadyExists.new("Group with name #{group_name} already exists.")
              else
                data[:groups][group_name][:path] = path
                Excon::Response.new.tap do |response|
                  response.body = { 'Group' => {
                                                 'GroupId'   => (data[:groups][group_name][:group_id]).strip,
                                                 'GroupName' => group_name,
                                                 'Path'      => path,
                                                 'Arn'       => (data[:groups][group_name][:arn]).strip },
                                    'RequestId' => Fog::AWS::Mock.request_id }
                  response.status = 200
                end
              end

            end