ExpandedAttrUpdateOptionIn
final class ExpandedAttrUpdateOptionIn[T <: Txn[T], A](in: IExpr[T, Obj], key: String, value: IExpr[T, Option[A]], tx0: T)(implicit bridge: Bridge[A], context: Context[T]) extends Disposable[T]
trait Disposable[T]
class Object
trait Matchable
class Any