code: public function changeBackupFTPPassword($domain)
  	{
  		$domain = (string)$domain;
  		if (!$domain)
  			throw new BadMethodCallException('Parameter $domain is missing.');
          try {
              $r = $this->post('dedicated/server/' . $domain . '/features/backupFTP/password')->send();
          } catch (\Exception $e) {
              throw new ServerException($e->getMessage(), $e->getCode(), $e);
          }
          return $r->getBody(true);
  	}
docs: delete backupFTP
  
  @param 	$domain -> Server that this applies to
  
  @return Task object