# File lib/fog/rackspace/requests/auto_scale/update_webhook.rb, line 18
        def update_webhook(group_id, policy_id, webhook_id, options)
          group = self.data[:autoscale_groups][group_id]
          if group.nil?
            raise Fog::Rackspace::AutoScale::NotFound
          end

          policy = group['scalingPolicies'].find { |p| p["id"] == policy_id }
          if policy.nil?
            raise Fog::Rackspace::AutoScale::NotFound
          end

          webhook = policy['webhooks'].find { |w| w['id'] == webhook_id }
          if webhook.nil?
            raise Fog::Rackspace::AutoScale::NotFound
          end

          webhook.merge(options)

          response(:body => webhook)
        end