old_contents: # Get the Node helper library from https://twilio.com/docs/libraries/python
  from Twilio.rest import Client
  
  # Get your Account SID and Auth Token from https://twilio.com/console
  account_sid = 'ACXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX'
  auth_token = 'your_auth_token'
  client = Client(account_sid, auth_token)
  
  fleet_sid = 'FLXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX'
  fleet_service = client.preview.deployed_devices.fleets(fleet_sid)
  
  certificates = fleet_service.list()
  
  print(certificates)
  
new_contents: # Get the Node helper library from https://twilio.com/docs/libraries/python
  from Twilio.rest import Client
  
  # Get your Account SID and Auth Token from https://twilio.com/console
  account_sid = 'ACXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX'
  auth_token = 'your_auth_token'
  client = Client(account_sid, auth_token)
  
  fleet_sid = 'FLXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX'
  fleet_service = client.preview.deployed_devices.fleets(fleet_sid)
  
  certificates = fleet_service.certificates.list()
  
  print(certificates)
  
subject: fix certificates list snippet.