ToIsEmptyOps
trait ToPlusEmptyOps[TC]
trait ToPlusOps[TC]
trait ToPlusOps0[TC]
trait ToPlusOpsU[TC]
trait ToPlusEmptyOps0[TC]
trait ToPlusEmptyOpsU[TC]
trait ToIsEmptyOps0[TC]
trait ToIsEmptyOpsU[TC]
class Object
trait Matchable
class Any
object isEmpty