```ruby
module Notifiable

	class NotifierBase
    
		def send_notification(notification, device_token)
      # todo - add before hook
      enqueue(notification, device_token)
      # todo - add after hook       				
    end
    
    def close
      flush
      save_receipts
    end
    
    protected
    def flush
      
    end
    
    def processed(notification, device_token)
      receipts << {:notification_id => notification.id, :device_token_id => device_token.id }
      
      if receipts.count > 10000
        save_receipts
      end
    end
    
    private
    def receipts
      @receipts ||= []
    end
    
    def save_receipts
      Notifiable::NotificationDeviceToken.bulk_insert! receipts
      @receipts = []
    end
	end


end```

Add env attr to NotifierBase.rb
user
```ruby
module Notifiable

	class NotifierBase
    
    attr_accessor :env
    
		def send_notification(notification, device_token)
      # todo - add before hook
      enqueue(notification, device_token)
      # todo - add after hook       				
    end
    
    def close
      flush
      save_receipts
    end
    
    protected
    def flush
      
    end
    
    def processed(notification, device_token)
      receipts << {:notification_id => notification.id, :device_token_id => device_token.id }
      
      if receipts.count > 10000
        save_receipts
      end
    end
    
    private
    def receipts
      @receipts ||= []
    end
    
    def save_receipts
      Notifiable::NotificationDeviceToken.bulk_insert! receipts
      @receipts = []
    end
	end


end```
assistant