You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: sales_exchanger.rb
    path of file: ./repos/ekylibre/app/exchangers/socleo
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

module Socleo
  class SalesExchanger < Base
    category :sales
    
    
    def find_or_create_sale_nature
      name = I18n.t('exchanger.socleo.sales.sale_nature_name')

      Maybe(find_sale_nature_by_provider)
        .recover { SaleNature.find_by(name: name) }
        .recover { create_sale_nature(name) }
        .or_raise
    end