nestedListRoundtrip :: TestTree
nestedListRoundtrip = roundTripTest defSpec
    { testName = "Nested list"
    , testType = Proxy :: Proxy [[Integer]] }
nestedListRoundtrip :: TestTree
nestedListRoundtrip = roundTripTest defSpec
    { testName = "Nested list"
    , testType = Proxy :: Proxy [[Integer]] }
nestedListRoundtrip = roundTripTest defSpec
    { testName = "Nested list"
    , testType = Proxy :: Proxy [[Integer]] }