anchor.diff:  
   /// The Slack notification attachment field parameter type
   [<CLIMutable>]
  +[<System.Obsolete("Use Fake.Api.Slack.NotificationAttachmentFieldParams instead")>]
   type SlackNotificationAttachmentFieldParams = {
       /// (Required) The field title
       Title: string
  
positive.code: 
  /// The Slack notification parameter type
  [<CLIMutable>]
  type SlackNotificationParams = {
      /// (Required) The message body
      Text: string
  
negative.code:     SlackNotificationDefaults 
      |> setParams
      |> ValidateParams webhookURL
      |> sendNotification
  