feat(init/data/option_t): option_t is a monad transformer
feat(init/data/option_t): option_t is a monad transformer

johoelzl/lean,leodemoura/lean,digama0/lean,digama0/lean,leodemoura/lean,fpvandoorn/lean,leanprover-community/lean,leanprover/lean,rlewis1988/lean,johoelzl/lean,leanprover/lean,dselsam/lean,digama0/lean,leanprover-community/lean,fpvandoorn/lean,Kha/lean,avigad/lean,dselsam/lean,avigad/lean,fpvandoorn/lean,johoelzl/lean,leodemoura/lean,rlewis1988/lean,Kha/lean,leanprover-community/lean,leodemoura/lean,Kha/lean,leanprover/lean,rlewis1988/lean,johoelzl/lean,dselsam/lean,Kha/lean,rlewis1988/lean,Kha/lean,johoelzl/lean,rlewis1988/lean,avigad/lean,leanprover/lean,leanprover/lean,Kha/lean,leanprover-community/lean,leodemoura/lean,digama0/lean,fpvandoorn/lean,johoelzl/lean,dselsam/lean,fpvandoorn/lean,digama0/lean,avigad/lean,rlewis1988/lean,dselsam/lean,avigad/lean,dselsam/lean,leanprover-community/lean,digama0/lean,leanprover-community/lean,fpvandoorn/lean,leanprover/lean,leodemoura/lean,avigad/lean