instance
CoproductSingletons
HListSingletons
MkArbitrary
MkCogen
MkCoproductArbitrary
MkCoproductCogen
MkCoproductShrink
MkCoproductShrink0
MkHListArbitrary
MkHListCogen
MkHListShrink
MkRecursiveCoproductArbitrary
MkShrink
Singletons