val packageName = "okhttp3.internal.idn"
  val idnaMappingTable = ClassName(packageName, "IdnaMappingTable")

  return FileSpec
    .builder(packageName, "IdnaMappingTableInstance")
    .addProperty(
      PropertySpec
        .builder("IDNA_MAPPING_TABLE", idnaMappingTable)
        .addModifiers(KModifier.INTERNAL)
        .initializer(
          """
          |%T(⇥

  filteringCharset = Charsets.UTF_8.toString()

  expand(
    // Build & use okhttp3/internal/-InternalVersion.kt
    "projectVersion" to project.version,
  )
}

// Build & use okhttp3/internal/idn/IdnaMappingTableInstance.kt
val generateIdnaMappingTableConfiguration: Configuration by configurations.creating
dependencies {
  generateIdnaMappingTableConfiguration(projects.okhttpIdnaMappingTable)
}