If by `binding` you mean pass by reference, it is the case:

```ruby
class Parent
  def id_of(object)
    puts "Parent: #{object.object_id}"
    object
  end
end

class Child < Parent
  def id_of(object)
    puts "Before: #{object.object_id}"
    puts "After: #{super.object_id}"
  end
end

Child.new.id_of('hello')
```

```shell
Before: 70099449857940
Parent: 70099449857940
After: 70099449857940
```

Above also holds true whether `Parent` and/or `Child` use varargs.