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: 20230809201542_drop_unused_tables.rb
    path of file: ./repos/openfoodnetwork/db/migrate
    
    the code of the file until where you have to start completion: class Dro
    
  def up
    drop_table :spree_stock_transfers
    drop_table :spree_product_scopes
    drop_table :spree_pending_promotions
    drop_table :spree_activators
    drop_table :delayed_jobs
  end