listF :: Eq a => [(a, F b c)] -> F (a, b) (a, c)
listF tagged_fudgets
listF
operate in parallel, indepdenetly of one
another. The high level output streams from the individual
fudgets are tagged and merged into a single stream. The input stream,
which must be tagged, is split up and fed to the appropriate fudget.
(tag,msg)
is sent to the fudget tagged tag
.
(tag,msg)
comes from the fudget tagged tag
.
tagged_fudgets :: [(a, F b c)]