docs: public Attachment removeAttachment(final long attachmentId) {
          Attachment removedAttachment = null;
  
          if (attachments != null) {
              for (int index = attachments.size() - 1; index >= 0; --index) {
                  Attachment currentAttachment = attachments.get(index);
  
                  if (currentAttachment.getId() == attachmentId) {
                      removedAttachment = attachments.remove(index);
                      break;
                  }
              }
          }
  
          return removedAttachment;
      }