úΫ   A class for 3 types that can be instantiated without programmer  input. e.g. the standard haskell Chan$ is a member of this class, however " a bounded chan type that took an Int& to define the buffer size would not. A class for chan types with a " write end" and a "read end" . A minimal  complete instance defines  and one of  or  . Read the next value from the OutChan. -Write an entire list of items to a chan type Write a value to a Chan type. The  read side of a chan pair The  write side of a chan pair KReturn a lazy list representing the contents of the supplied OutChan, much  like System.IO.hGetContents.  Duplicate an /: the duplicate channel begins empty, but data  written to the corresponding ' will appear in both, i.e. consuming a G value from the copy will have no affect on the values in the original  OutChan.          chan-split-0.2.0Control.Concurrent.Chan.ClassControl.Concurrent.Chan.Split NewSplitChan newSplitChan SplitChanreadChanwriteList2Chan writeChanOutChanInChangetChanContentsdupChan