How to use the googleads.dfa.DfaClient function in googleads

# Get placement types.
  results = placement_service.getPlacementsByCriteria(
      placement_search_criteria)

  # Display placement names and IDs.
  if results['records']:
    for placement in results['records']:
      print ('Placement with name \'%s\' and ID \'%s\' was found.'
             % (placement['name'], placement['id']))
  else:
    print 'No placements found for your criteria.'


if __name__ == '__main__':
  # Initialize client object.
  dfa_client = dfa.DfaClient.LoadFromStorage()
  main(dfa_client)

def main(client, advertiser_ids, advertiser_group_id):
  # Initialize appropriate service.
  advertiser_group_service = client.GetService(
      'advertisergroup', 'v1.20', 'https://advertisersapitest.doubleclick.net')

  # Assign the advertisers to the advertiser group.
  advertiser_group_service.assignAdvertisersToAdvertiserGroup(
      advertiser_group_id, advertiser_ids)
  print 'Advertisers have been updated.'


if __name__ == '__main__':
  # Initialize client object.
  dfa_client = dfa.DfaClient.LoadFromStorage()
  main(dfa_client, ADVERTISER_IDS, ADVERTISER_GROUP_IDS)

# Display creative group names, IDs, advertiser IDs, and group numbers.
  if results['records']:
    for creative_field_value in results['records']:
      print ('Creative group with name \'%s\', ID \'%s\', advertiser ID \'%s\','
             ' and group number \'%s\' was found.'
             % (creative_field_value['name'], creative_field_value['id'],
                creative_field_value['advertiserId'],
                creative_field_value['groupNumber']))
  else:
    print 'No creative groups found for your criteria.'


if __name__ == '__main__':
  # Initialize client object.
  dfa_client = dfa.DfaClient.LoadFromStorage()
  main(dfa_client, ADVERTISER_ID)

# Construct and save creative field value.
  creative_field_value = {
      'name': creative_field_value_name,
      'creativeFieldId': creative_field_id,
      'id': '-1'
  }
  result = creative_field_service.saveCreativeFieldValue(
      creative_field_value)

  # Display results.
  print 'Creative field value with ID \'%s\' was created.' % result['id']


if __name__ == '__main__':
  # Initialize client object.
  dfa_client = dfa.DfaClient.LoadFromStorage()
  main(dfa_client, CREATIVE_FIELD_ID, CREATIVE_FIELD_VALUE_NAME)

if results['records']:
    for change_log in results['records']:
      print ('Action \'%s\', Context \'%s\', Change Date \'%s\','
             ' New Value \'%s\', Old Value \'%s\', Profile Name \'%s\''
             ' was found.'
             % (change_log['action'],
                change_log['context'], change_log['changeDate'],
                change_log['newValue'], change_log['oldValue'],
                change_log['username']))
  else:
    print 'No change log entries found for your criteria.'


if __name__ == '__main__':
  # Initialize client object.
  dfa_client = dfa.DfaClient.LoadFromStorage()
  main(dfa_client, ADVERTISER_ID)

'creativeAssets': [{
          'assetFilename': mobile_asset_file_name
      }]
  }

  # If you don't specify an xsi_type for a creative, the client library will try
  # to infer it from the typeId.
  result = creative_service.saveCreative(mobile_creative, campaign_id)

  # Display results.
  print 'Mobile creative with ID \'%s\' was created.' % result['id']


if __name__ == '__main__':
  # Initialize client object.
  dfa_client = dfa.DfaClient.LoadFromStorage()
  main(dfa_client, CAMPAIGN_ID, ADVERTISER_ID, CREATIVE_NAME,
       MOBILE_ASSET_FILE_NAME)

def main(client_id, client_secret, refresh_token, user_profile_name,
         application_name):
  oauth2_client = oauth2.GoogleRefreshTokenClient(
      client_id, client_secret, refresh_token)

  dfa_client = dfa.DfaClient(user_profile_name, oauth2_client, application_name)

  campaign_service = dfa_client.GetService(
      'campaign', server='https://advertisersapitest.doubleclick.net')
  results = campaign_service.getCampaignsByCriteria({})
  if results['records']:
    for campaign in results['records']:
      print ('Campaign with name \'%s\' and ID \'%s\' was found.'
             % (campaign['name'], campaign['id']))

results = subnetwork_service.getSubnetworks(
      subnetwork_search_criteria)

  # Display subnetwork names, IDs, and subnetwork IDs.
  if results['records']:
    for subnetwork in results['records']:
      print ('Subnetwork with name \'%s\', ID \'%s\', part of network ID \'%s\''
             ' was found.' % (subnetwork['name'], subnetwork['id'],
                              subnetwork['networkId']))
  else:
    print 'No subnetworks found for your criteria.'


if __name__ == '__main__':
  # Initialize client object.
  dfa_client = dfa.DfaClient.LoadFromStorage()
  main(dfa_client)

'advertisergroup', 'v1.20', 'https://advertisersapitest.doubleclick.net')

  # Construct and save advertiser.
  advertiser_group = {
      'name': 'AdvertiserGroup %s' % uuid.uuid4()
  }
  result = advertiser_group_service.saveAdvertiserGroup(
      advertiser_group)

  # Display results.
  print 'Advertiser group with ID \'%s\' was created.' % result['id']


if __name__ == '__main__':
  # Initialize client object.
  dfa_client = dfa.DfaClient.LoadFromStorage()
  main(dfa_client)