Property loader import with alias type information

[Tamagotchi20]

Hi

I tried to use the property loader with alias file but I noticed if I want to import a local variable which doesn't exist yet I get the Error:

Error in Property Loader Source 'Source 0'
Unable to create 'Sequence[MainSequence].Locals.Test_Property'. The type information for the property in property loader group with id 'E297FAF9-81C9-4A1E-B736-5D9275880518' and name 'Voltage_Temparature_Test' does not exist in the source. Add the type information in the source.

I assume it's because I didn't specify the var type but how can I specify it? I didn't find any information about this in the documentation as well as in the example.