new_contents: from domonit.errors import NoSuchContainerError, ServerErrorError, BadParameterError
  
  class Utils():
     
  
      def __init__(self):
          pass   
  
      def check_resp(self, resp_status_code, url):
          self.resp_status_code = resp_status_code
          self.url = url
  
          if resp_status_code == 404:
              raise NoSuchContainerError('GET ' + url + ' {} '.format(resp_status_code)) 
          elif resp_status_code == 500:
              raise ServerErrorError('GET ' + url + ' {} '.format(resp_status_code))
          elif resp_status_code == 400:
              raise BadParameterError('GET ' + url + ' {} '.format(resp_status_code))
  
subject: update imports