anchor.diff:    /**
     * @docs https://sendgrid.api-docs.io/v3.0/users-api/update-your-username
     * @hint Update your username
  -  * @username The new username you would like to use for your account.
  +  * @username is the new username you would like to use for your account.
     * @on_behalf_of generates the API call as if the subuser account was making the request
     */
     public struct function updateUserUsername( required string username, string on_behalf_of = '' ) {
  
positive.code:   /**
    * @docs https://sendgrid.api-docs.io/v3.0/users-api/update-your-account-email-address
    * @hint Update your account email address
    * @email The new email address that you would like to use for your account.
    * @on_behalf_of generates the API call as if the subuser account was making the request
    */
    public struct function updateUserEmail( required string email, string on_behalf_of = '' ) {
  
negative.code:   /**
    * @docs https://sendgrid.api-docs.io/v3.0/blocks-api/retrieve-all-blocks
    * @hint Retrieve a list of all email addresses that are currently on your blocks list.
    * @start_time is the start of the time range when the blocked email was created. If numeric, it's assumed to be a unix timestamp. Otherwise, it's presumed to be a valid date that will be converted to a unix timestamp automatically
    * @end_time is the end of the time range when the blocked email was created. If numeric, it's assumed to be a unix timestamp. Otherwise, it's presumed to be a valid date that will be converted to a unix timestamp automatically
    */
    public struct function listBlocks( any start_time = 0, any end_time = 0, numeric limit = 0, numeric offset = 0 ) {
      var params = {};
  