code: public NotificationSettings getGroupNotificationSettings(int groupId) throws GitLabApiException {
          Response response = get(Response.Status.OK, null, "groups", groupId, "notification_settings");
          return (response.readEntity(NotificationSettings.class));
      }
docs: Get the notification settings for a group.
  
  <pre><code>GitLab Endpoint: GET /groups/:id/notification_settings</code></pre>
  
  @param groupId the group ID to get the notification settings for
  @return a NotificationSettings instance containing the specified group's notification settings
  @throws GitLabApiException if any exception occurs