val typeParameterOwner = constructor.declarationDescriptor as? ClassifierDescriptorWithTypeParameters ?: return null

        val mapping = mutableMapOf<TypeParameterDescriptor, BoundTypeArgument>()
        arguments.forEachIndexed { index, typeProjection ->
            val typeParameter = typeParameterOwner.declaredTypeParameters.getOrNull(index) ?: return@forEachIndexed
            var boundTypeArgument: BoundTypeArgument = when {