来自Haskell的byorgy双树的一个端口，
A port of byorgy s dual-tree from Haskell, (2017-10-07, PureScript, 0KB, 下载0次)
purescript双分裂器，，
purescript-bifunctors,, (2021-10-13, PureScript, 0KB, 下载0次)
双函子和双应用，
Bifunctors and biapplicatives, (2022-04-27, PureScript, 0KB, 下载0次)