sbt

abstract class BaseTestTask[T] extends sbt.testing.Task
type SendSummary = ZIO[Summary, Nothing, Unit]
final class ZMasterTestRunnerJS extends ZTestRunnerJS
final class ZSlaveTestRunnerJS extends ZTestRunnerJS
final case class ZTestEvent(fullyQualifiedName: String, selector: Selector, status: Status, maybeThrowable: Option[Throwable], duration: Long, fingerprint: Fingerprint) extends Event with Product with Serializable
class ZTestEventHandlerSbt extends ZTestEventHandler
final class ZTestFramework extends Framework
sealed abstract class ZTestRunnerJS extends Runner
sealed class ZTestTask extends BaseTestTask[Any]

object SendSummary extends Serializable
object SummaryProtocol

The ScalaJS SBT Runner uses strings to send and receive summaries.
The ScalaJS SBT Runner uses strings to send and receive summaries. To transmit structured Summary data, we need to serialize to and from strings.
object ZTestEvent extends Serializable
object ZTestTask
object ZioSpecFingerprint extends SubclassFingerprint