title: Dart - Mark as Deprecated Documentation
body: <p>I changed something in my implementations and I want to mark some classes deprecated, so  that they will use the new implementations instead.</p>
  <p>How can I mark a class as deprecated in dart? For now I only document it as deprecated without actually marking the class or crossing it out.</p>
  <pre><code>/// Throws a BadRequestException - 400
  class BadRequestException implements Exception {}
  /// Throws a NotFoundException - 404
  class NotFoundException implements Exception {}
  /// Throws a ConflictException - 409
  class ConflictException implements Exception {}
  /// [DEPRECATED]
  /// Don't use this anymore, this is deprecated.
  class AlreadyExistsException implements Exception {}
  </code></pre>