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: sync.rb
    path of file: ./repos/artichoke/artichoke-backend/src/extn/stdlib/vendor/gen
    
    the code of the file until where you have to start completion: # frozen_string_literal: false
#
#   sync.rb - 2 phase lock with counter
#       $Release Version: 1.0$
#       $Revis
    
  def sync_synchronize(mode = EX)
    Thread.handle_interrupt(StandardError => :on_blocking) do
      sync_lock(mode)
      begin
        yield
      ensure
        sync_unlock
      end
    end