abstract trait Bippy[A <: AnyRef, B] extends AnyRef
    extest.Bippy[_ <: AnyRef, _]

abstract trait BippyBud[A <: AnyRef, B, C <: List[A]] extends AnyRef
    extest.BippyBud[A,B,C] forSome { A <: AnyRef; B; C <: List[A] }

abstract trait BippyLike[A <: AnyRef, B <: List[A], This <: extest.BippyLike[A,B,This] with extest.Bippy[A,B]] extends AnyRef
    extest.BippyLike[A,B,This] forSome { A <: AnyRef; B <: List[A]; This <: extest.BippyLike[A,B,This] with extest.Bippy[A,B] }

abstract trait Contra[-A >: AnyRef, -B] extends AnyRef
    extest.Contra[AnyRef, _]

abstract trait ContraLike[-A >: AnyRef, -B >: List[A]] extends AnyRef
    extest.ContraLike[A,B] forSome { -A >: AnyRef; -B >: List[A] }

abstract trait Cov01[+A <: AnyRef, +B] extends AnyRef
    extest.Cov01[AnyRef,Any]

abstract trait Cov02[+A <: AnyRef, B] extends AnyRef
    extest.Cov02[AnyRef, _]

abstract trait Cov03[+A <: AnyRef, -B] extends AnyRef
    extest.Cov03[AnyRef, _]

abstract trait Cov04[A <: AnyRef, +B] extends AnyRef
    extest.Cov04[_ <: AnyRef, Any]

abstract trait Cov05[A <: AnyRef, B] extends AnyRef
    extest.Cov05[_ <: AnyRef, _]

abstract trait Cov06[A <: AnyRef, -B] extends AnyRef
    extest.Cov06[_ <: AnyRef, _]

abstract trait Cov07[-A <: AnyRef, +B] extends AnyRef
    extest.Cov07[_ <: AnyRef, Any]

abstract trait Cov08[-A <: AnyRef, B] extends AnyRef
    extest.Cov08[_ <: AnyRef, _]

abstract trait Cov09[-A <: AnyRef, -B] extends AnyRef
    extest.Cov09[_ <: AnyRef, _]

abstract trait Cov11[+A <: AnyRef, +B <: List[_]] extends AnyRef
    extest.Cov11[AnyRef,List[_]]

abstract trait Cov12[+A <: AnyRef, B <: List[_]] extends AnyRef
    extest.Cov12[AnyRef, _ <: List[_]]

abstract trait Cov13[+A <: AnyRef, -B <: List[_]] extends AnyRef
    extest.Cov13[AnyRef, _ <: List[_]]

abstract trait Cov14[A <: AnyRef, +B <: List[_]] extends AnyRef
    extest.Cov14[_ <: AnyRef, List[_]]

abstract trait Cov15[A <: AnyRef, B <: List[_]] extends AnyRef
    extest.Cov15[_ <: AnyRef, _ <: List[_]]

abstract trait Cov16[A <: AnyRef, -B <: List[_]] extends AnyRef
    extest.Cov16[_ <: AnyRef, _ <: List[_]]

abstract trait Cov17[-A <: AnyRef, +B <: List[_]] extends AnyRef
    extest.Cov17[_ <: AnyRef, List[_]]

abstract trait Cov18[-A <: AnyRef, B <: List[_]] extends AnyRef
    extest.Cov18[_ <: AnyRef, _ <: List[_]]

abstract trait Cov19[-A <: AnyRef, -B <: List[_]] extends AnyRef
    extest.Cov19[_ <: AnyRef, _ <: List[_]]

abstract trait Cov21[+A, +B] extends AnyRef
    extest.Cov21[Any,Any]

abstract trait Cov22[+A, B] extends AnyRef
    extest.Cov22[Any, _]

abstract trait Cov23[+A, -B] extends AnyRef
    extest.Cov23[Any, _]

abstract trait Cov24[A, +B] extends AnyRef
    extest.Cov24[_, Any]

abstract trait Cov25[A, B] extends AnyRef
    extest.Cov25[_, _]

abstract trait Cov26[A, -B] extends AnyRef
    extest.Cov26[_, _]

abstract trait Cov27[-A, +B] extends AnyRef
    extest.Cov27[_, Any]

abstract trait Cov28[-A, B] extends AnyRef
    extest.Cov28[_, _]

abstract trait Cov29[-A, -B] extends AnyRef
    extest.Cov29[_, _]

abstract trait Cov31[+A, +B, C <: (A, B)] extends AnyRef
    extest.Cov31[A,B,C] forSome { +A; +B; C <: (A, B) }

abstract trait Cov32[+A, B, C <: (A, B)] extends AnyRef
    extest.Cov32[A,B,C] forSome { +A; B; C <: (A, B) }

abstract trait Cov33[+A, -B, C <: Tuple2[A, _]] extends AnyRef
    extest.Cov33[A,B,C] forSome { +A; -B; C <: Tuple2[A, _] }

abstract trait Cov34[A, +B, C <: (A, B)] extends AnyRef
    extest.Cov34[A,B,C] forSome { A; +B; C <: (A, B) }

abstract trait Cov35[A, B, C <: (A, B)] extends AnyRef
    extest.Cov35[A,B,C] forSome { A; B; C <: (A, B) }

abstract trait Cov36[A, -B, C <: Tuple2[A, _]] extends AnyRef
    extest.Cov36[A,B,C] forSome { A; -B; C <: Tuple2[A, _] }

abstract trait Cov37[-A, +B, C <: Tuple2[_, B]] extends AnyRef
    extest.Cov37[A,B,C] forSome { -A; +B; C <: Tuple2[_, B] }

abstract trait Cov38[-A, B, C <: Tuple2[_, B]] extends AnyRef
    extest.Cov38[A,B,C] forSome { -A; B; C <: Tuple2[_, B] }

abstract trait Cov39[-A, -B, C <: Tuple2[_, _]] extends AnyRef
    extest.Cov39[_, _, _ <: Tuple2[_, _]]

abstract trait Cov41[+A >: Null, +B] extends AnyRef
    extest.Cov41[Any,Any]

abstract trait Cov42[+A >: Null, B] extends AnyRef
    extest.Cov42[Any, _]

abstract trait Cov43[+A >: Null, -B] extends AnyRef
    extest.Cov43[Any, _]

abstract trait Cov44[A >: Null, +B] extends AnyRef
    extest.Cov44[_ >: Null, Any]

abstract trait Cov45[A >: Null, B] extends AnyRef
    extest.Cov45[_ >: Null, _]

abstract trait Cov46[A >: Null, -B] extends AnyRef
    extest.Cov46[_ >: Null, _]

abstract trait Cov47[-A >: Null, +B] extends AnyRef
    extest.Cov47[_ >: Null, Any]

abstract trait Cov48[-A >: Null, B] extends AnyRef
    extest.Cov48[_ >: Null, _]

abstract trait Cov49[-A >: Null, -B] extends AnyRef
    extest.Cov49[_ >: Null, _]

abstract trait Covariant[+A <: AnyRef, +B] extends AnyRef
    extest.Covariant[AnyRef,Any]

abstract trait CovariantLike[+A <: AnyRef, +B <: List[A], +This <: extest.CovariantLike[A,B,This] with extest.Covariant[A,B]] extends AnyRef
    extest.CovariantLike[A,B,This] forSome { +A <: AnyRef; +B <: List[A]; +This <: extest.CovariantLike[A,B,This] with extest.Covariant[A,B] }