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: persist_application_service.rb
    path of file: ./repos/openproject/app/services/oauth
    
    the code of the file until where you have to start completion: #-- copyright
# OpenProject is an open source project management software.
# Copyright (C) 2012-2024 the OpenP
    
    def call(attributes)
      set_defaults
      application.attributes = attributes
      set_secret_and_id

      result, errors = validate_and_save(application, current_user)
      ServiceResult.new success: result, errors:, result: application
    end