hosted Host exposes [openFile!, closeFile!, getFileLine!, getFileBytes!, putLine!, putRaw!, getLine!, getChar!] imports [] openFile! : Str => U64 closeFile! : U64 => {} getFileLine! : U64 => Str getFileBytes! : U64 => List U8 putLine! : Str => {} putRaw! : Str => {} getLine! : {} => Str getChar! : {} => U8