How do I output only country part of location field using the SimpleMap plugin? The docs of the SimpleMap plugin mention it's possible to output only part of the full location, e.g. just the country by using 

{{ myMapField.country_short }}


but in my project I get this error when I try doing so:

Internal Server Error

Craft\SimpleMap_MapModel and its behaviors do not have a method or closure named "country".


Same result without the _short suffix.
The plugin is set up properly as I can correctly output full address, lat, lng, zoom values like so:

{{ myMapField.address }}
{{ myMapField.lat }}
{{ myMapField.lng }}


Just splitting up the full address results in the above error. What's going wrong?
Never used the plugin, but from the docs:

parts
This contains the locations address, broken down into its constituent parts. All values are optional so you'll need to have checks on any you use to make sure they exist.
A list of the available values can be found here.
To access the short version of any part, append _short to the end of its name. E.g. {{ myMapField.country_short }}.

Sounds like the country info is optional and may not exist on the model, hence the note to check if it exists or not first.
i.e.
{% if myMapField.country_short is defined %}
    {{ myMapField.country_short }}
{% endif %}