x-model Alpinejs cant read value. Programmatic access for x-model

I`m try to Programmatic access for x-model. But it is undefined. What is wrong?

this.$refs['SCOPE']._x_model.get()

this.$refs[‘SCOPE’]._x_model – undefined.

<select x-model="scope" x-ref="SCOPE" name="form-scope" id="form-scope" class="js-choice">
   <option value="">Выберите сферу применения</option>
</select>

Doc – https://alpinejs.dev/directives/model#programmatic%20access