How to initiate and assign a string value to a variable of LanguageType

I try to get data from an SOAP-API service (Sveriges Riksbank).with the UiPath SOAP Request activity.

One of the parameters in the parameter collection is defined as LanguageType.

When I create a variable the shown type is

I simply need to write in “sv” which is one of the two accepted values, but how to convert this string to the complex type?

We solved it now by an HTTP-Request.