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: spec_helper.rb
    path of file: ./repos/config/spec
    
    the code of the file until where you have to start completion: ENV['RAILS_ENV'] ||= 'test'

puts "RUBY_ENGINE: #{RUBY_ENGINE}"
puts
    
      def self.reset
        self.const_name           = 'Settings'
        self.use_env              = false
        self.knockout_prefix      = nil
        self.overwrite_arrays     = true
        self.schema               = nil
        self.validation_contract  = nil
        self.fail_on_missing      = false
        self.file_name            = 'settings'
        self.dir_name             = 'settings'
        instance_variable_set(:@_ran_once, false)
      end