anchor.diff:  
     /**
     * @hint Generic method for defining individual mail settings. Using the dedicated methods for defining mail settings is usually preferable to invoking this directly.
  -  * @setting Facilitates two means of defining a setting. You can pass in a struct with a key/value pair for the setting and its value. Alternatively, you can use this to pass in the setting key, and provide the value as a second argument.
  +  * @setting Facilitates two means of defining a setting. You can pass in a struct with a key/value pair for the setting and its value, for example, `{ "sandbox_mode" : { "enable" : true } }`. Alternatively, you can use this to pass in the setting key, and provide the value as a second argument.
     */
     public any function mailSetting( required any setting, any value ) {
       if ( isStruct( setting ) )
  
positive.code:   }
  
    /**
    * @hint convenience method for enabling the `bypass_list_management` mail setting
    */
    public any function enableBypassListManagement() {
      return bypassListManagementSetting( true );
    }
  
    /**
    * @hint convenience method for disabling the `bypass_list_management` mail setting
    */
    public any function disableBypassListManagement() {
      return bypassListManagementSetting( false );
  
negative.code: 
    /**
    * @hint Appends a single attachment to the message.
    * @attachment is a struct with at minimum keys for `content` and `filename`. View [the SendGrid docs](https://sendgrid.api-docs.io/v3.0/mail-send) for the full makeup and requirements of the object.
    */
    public any function addAttachment( required struct attachment ) {
      variables.attachments.append( attachment );
  