```ruby
class <%= migration_class_name %> < <%= migration_base_class_name %>
  def up
  end

  def down
    raise ActiveRecord::IrreversibleMigration
  end
end```

Add a missing newline to the end of template file Add a newline to the end of template file because some code checking tools warn when a file has no newline at the end.
user
```ruby
class <%= migration_class_name %> < <%= migration_base_class_name %>
  def up
  end

  def down
    raise ActiveRecord::IrreversibleMigration
  end
end
```
assistant