Constructor parameter renamed to arg0 with Proguard/R8

I am using reflection to read the name of the constructor's parameters. When I enable proguard (isMinifyEnabled = true) the parameter name becomes arg0, making my reflection fail. I have tried many proguard settings, as I show next.

This is my reflection code:

(this::class as KClass<Any>).let { thisClass ->
        thisClass.firstConstructor.parameters.mapNotNull { parameter ->
            parameter.name?.let { name ->
                thisClass.memberProperties.firstOrNull { it.name == name }
            }?.let { property ->
                Argument.from(property, property.get(this), serializers)
            }
        }
    }

The proguard setting that I expected to solve this issue:

-keep class * extends my.class.package.name.Destination {
    public <init>(...);
}

I have also tried including public <fields>; and public <methods>;.
I have also tried these settings:

-keepparameternames
-keepattributes MethodParameters
-keepattributes Signature

Finally, I tried disabling shrinking with isShrinkResources = false in gradle and disabling obfuscation with -dontobfuscate in proguard, but it still renames my contructor's parameter to arg0.

Relevant project versions: kotlin 1.8.0, android gradle 7.2.2, gradle 7.5.1, Android Studio Flamingo | 2022.2.1 Patch 1.

So, how can I keep the names of the constructor's parameters so that I can match them with memberProperties?