MIT licensed and maintained by Nikita Volkov
This version can be pinned in stack with:contravariant-extras-0.3.1@sha256:b22e4a5bc43d9fa9d05728955f306801ad1e6c7e059e8061aa2fa65e29c3c495,1669
Used by 1 package in nightly-2016-02-23(full list with versions):