    # File lib/fog/aws/requests/elb/create_lb_cookie_stickiness_policy.rb, line 35
            def create_lb_cookie_stickiness_policy(lb_name, policy_name, cookie_expiration_period=nil)
              if load_balancer = self.data[:load_balancers][lb_name]
                response = Excon::Response.new
                response.status = 200

                load_balancer['Policies']['LBCookieStickinessPolicies'] << { 'CookieExpirationPeriod' => cookie_expiration_period, 'PolicyName' => policy_name }

                create_load_balancer_policy(lb_name, policy_name, 'LBCookieStickinessPolicyType', {'CookieExpirationPeriod' => cookie_expiration_period})

                response.body = {
                  'ResponseMetadata' => {
                    'RequestId' => Fog::AWS::Mock.request_id
                  }
                }

                response
              else
                raise Fog::AWS::ELB::NotFound
              end
            end