Get labels of array in Bolt contenttype

In contenttype.yml

imagelicense:
      label: "Image License"
      type: select
      values:
        'Public-Domain' : 'Public Domain'
        'CC0' : 'CC0'
        'CC-BY' : 'CC BY'
        'CC-BY-SA' : 'CC BY-SA'
        'CC-BY-NC' : 'CC BY-NC'
        'CC-BY-NC-SA' : 'CC BY-NC-SA'
        
In twig:

{% if (record.imagelicense is defined and record.imagelicense is not empty) %}
  {% set labels = record.contenttype.fields.imagelicense.values %}
  <span class="image-license">{{ labels[record.imagelicense] }}</span>
{% endif %}