How to add input format to textarea in drupal 8

Code snippet that can use to add input format to textarea in drupal 8.

$form['description'] = [
  '#type' => 'text_format',
  '#format' => 'full_html',
  '#title' => $this->t('Description'),
  '#default_value' => $config->get('description') ? $config->get('description') : '',
];

the result is like this:

also there are others Properties:

• #base_type: The form element #type to use for the 'value' element. 'textarea' by default.
• #format: (optional) The text format ID to preselect. If omitted, the default format for the current user will be used.
• #allowed_formats: (optional) An array of text format IDs that are available for this element. If omitted, all text formats that the current user has access to will be allowed.