Cannot distinguish generics type with different number of type arguments

[pierre3]

class GenericsType {
} 

class GenericsType<T1> {
}

class GenericsType<T1,T2> {
}

In the plantuml, all of the above classes are interpreted as the same class.

class GenericsType {
}

class GenericsType`1<T1> {
}

class GenericsType`2<T1,T2> {
}

I consider converting to such UML.