fixes for generics

ksp/variations/src/commonMain/kotlin/GenerationVariant.kt

@@ -2,12 +2,17 @@ package dev.inmo.micro_utils.ksp.variations
 
 import kotlin.reflect.KClass
 
+/**
+ * @param argName New argument name. Default - empty - means "use default arg name"
+ * @param type Qualified class name, like "dev.inmo.micro_utils.ksp.variants.GenerationVariant"
+ * @param conversion Conversion string with `this`
+ */
 @Retention(AnnotationRetention.BINARY)
 @Repeatable
 @Target(AnnotationTarget.TYPE_PARAMETER, AnnotationTarget.VALUE_PARAMETER)
 annotation class GenerationVariant(
-    val argName: String,
-    val type: String,
+    val type: KClass<*>,
     val conversion: String,
-    vararg val varargTypes: KClass<*>
+    val argName: String = "",
+    vararg val genericTypes: KClass<*>
 )