Add extraColumnsBehavior argument to convertTo

Author: nikitinas

src/main/kotlin/org/jetbrains/kotlinx/dataframe/api/convertTo.kt

@@ -8,6 +8,6 @@ import kotlin.reflect.typeOf
 
 // region DataFrame
 
-public inline fun <reified T> AnyFrame.convertTo(): DataFrame<T> = convertToImpl(typeOf<T>(), true, org.jetbrains.kotlinx.dataframe.impl.api.ExtraColumns.Remove)
+public inline fun <reified T> AnyFrame.convertTo(extraColumnsBehavior: ExtraColumns = ExtraColumns.Keep): DataFrame<T> = convertToImpl(typeOf<T>(), true, extraColumnsBehavior)
 
 // endregion

src/test/kotlin/org/jetbrains/kotlinx/dataframe/testSets/person/DataFrameTests.kt

@@ -2147,7 +2147,7 @@ class DataFrameTests : BaseTest() {
 
         df.convertTo<Target>() shouldBe df
         df.convert { age }.toStr().convertTo<Target>() shouldBe df
-        df.add("col") { 1 }.convertTo<Target>() shouldBe df
+        df.add("col") { 1 }.convertTo<Target>(ExtraColumns.Remove) shouldBe df
 
         val added = df.add("col") { 1 }
         added.convertToImpl<Target>(typeOf<Target>(), allowConversion = true, ExtraColumns.Keep) shouldBe added
@@ -2165,7 +2165,7 @@ class DataFrameTests : BaseTest() {
         }
 
         shouldThrow<IllegalArgumentException> {
-            df.add("col") { 1 }.convertToImpl<Target>(typeOf<Target>(), allowConversion = true, ExtraColumns.Fail) shouldBe df
+            df.add("col") { 1 }.convertTo<Target>(ExtraColumns.Fail) shouldBe df
         }
 
         val list = df.toListOf<Target>()