code: def _folder_get_content_iter(self, folder_key=None):
          
  
          lookup_params = [
              {'content_type': 'folders', 'node': 'folders'},
              {'content_type': 'files', 'node': 'files'}
          ]
  
          for param in lookup_params:
              more_chunks = True
              chunk = 0
              while more_chunks:
                  chunk += 1
                  content = self.api.folder_get_content(
                      content_type=param['content_type'], chunk=chunk,
                      folder_key=folder_key)['folder_content']
  
                  # empty folder/file list
                  if not content[param['node']]:
                      break
  
                  # no next page
                  if content['more_chunks'] == 'no':
                      more_chunks = False
  
                  for resource_info in content[param['node']]:
                      yield resource_info
docs: Iterator for api.folder_get_content