Stream package:conduit

These are stream fusion versions of some of the functions in Data.Conduit.Combinators. Many functions don't have stream versions here because instead they have RULES which inline a definition that fuses.
Same as fuseBoth, but ignore the return value from the downstream Conduit. Same caveats of forced consumption apply. Since 1.1.5
Generalize the upstream return value for a Pipe from unit to any type. Since 1.1.5
Returns a tuple of the upstream and downstream results. Note that this will force consumption of the entire input stream. Since 0.5.0