def decode_response_body(content_type, body)
          return super unless response_representation
          return super if options && options.skip_deserialization
          return super if content_type.nil?

         # HERE content_type = "text/csv" when making a generate_account_report_csv request so it returns nil
          return nil unless content_type.start_with?(JSON_CONTENT_TYPE)
          body = "{}" if body.empty?
          instance = response_class.new
          response_representation.new(instance).from_json(body, unwrap: response_class)
          instance
        end

  sense = Google::Apis::AdsenseV2::AdsenseService.new
  scope = ['https://www.googleapis.com/auth/adsense']
  sense.authorization = Google::Auth::ServiceAccountCredentials.make_creds(
    json_key_io: File.open('./account.json'),
    scope: scope
  )
  account = "accounts/pub-xxxxxxxxxxxxx"
  result = sense.generate_account_report_csv(
    account,
    date_range: 'YESTERDAY',
    dimensions: %w[DATE],
    metrics: %w[PAGE_VIEWS IMPRESSIONS CLICKS]
  )

  pp result # will be nil