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: bench.rb
    path of file: ./repos/friendly_id
    
    the code of the file until where you have to start completion: require File.exp
    
def transaction
  ActiveRecord::Base.transaction do
    yield

    raise ActiveRecord::Rollback
  end
end