# File lib/fog/aws/requests/iam/put_group_policy.rb, line 35
        def put_group_policy(group_name, policy_name, policy_document)
          if data[:groups].key? group_name
            data[:groups][group_name][:policies][policy_name] = policy_document

            Excon::Response.new.tap do |response|
              response.body = { 'RequestId' => Fog::AWS::Mock.request_id }
              response.status = 200
            end
          else
            raise Fog::AWS::IAM::NotFound.new("The group with name #{group_name} cannot be found.")
          end
        end