Make `ResultType`’s `flatMap` public
Make `ResultType`’s `flatMap` public

natestedman/Result,ishkawa/Result,antitypical/Result,ratkins/Result,ratkins/Result,ratkins/Result,antitypical/Result,natestedman/Result,ikesyo/Result,ikesyo/Result,NachoSoto/Result,ikesyo/Result,natestedman/Result,antitypical/Result,NachoSoto/Result,ishkawa/Result,NachoSoto/Result,ishkawa/Result