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: event_storage_location.rb
    path of file: ./repos/human-essentials/app/events/event_types
    
    the code of the file until where you have to start completion: module Types
  include Dry.Types()
end

module EventTypes
  class EventStorageLocation < Dry::Struct
    transform_keys(&:to_sym)

    attribute :id, Types::Integer
    attri
    
    def reduce_inventory(item_id, quantity, validate: true)
      if validate
        current_quantity = items[item_id]&.quantity || 0
        if current_quantity < quantity
          raise InventoryError.new("Could not reduce quantity by #{quantity} - current quantity is #{current_quantity}",
            item_id,
            id)
        end