old_contents: from openprocurement_client.client import Client
  import sys
  
  
  def prepare_api_wrapper(key='', host_url="https://api-sandbox.openprocurement.org", api_version='0.8'):
      return Client(key, host_url, api_version)
  
  
  def get_tenders(client, offset=None):
      params = {'opt_fields': 'tenderID', 'descending': 1}
      if offset:
          params['offset'] = offset
      return client.get_tenders(params)
  
new_contents: from openprocurement_client.client import Client
  
  
  def prepare_api_wrapper(key='',
                          host_url='https://api-sandbox.openprocurement.org',
                          api_version='0.8'):
      return Client(key, host_url, api_version)
  
  
  def get_tenders(client, offset=None):
      params = {'opt_fields': 'tenderID', 'descending': 1}
      if offset:
          params['offset'] = offset
      return client.get_tenders(params)
  
subject: Remove unused import; split a long line of code