}

        sourceFiles
    }


private
fun Sequence<KotlinExtensionFunction>.groupedByTarget(): Map<ApiType, List<KotlinExtensionFunction>> =
    groupBy { it.targetType }


private
fun writeExtensionsTo(outputFile: File, packageName: String, targetType: ApiType, extensions: List<KotlinExtensionFunction>): Unit =
    outputFile.bufferedWriter().use { writer ->

package myKotlin

class TheTargetType

fun TheTargetType.kotlinExtensionFunction(s: String, i: Int, a: Any) {

import myKotlin.TheTargetType
import myKotlin.TheTargetTypeKt

def receiver = new TheTargetType()
def aReference = ""

// tag::kotlin-from-groovy[]
TheTargetTypeKt.kotlinExtensionFunction(receiver, "parameters", 42, aReference)
// end::kotlin-from-groovy[]