FIXME: doc
- data Router m α β
- runRouter :: (Applicative m, MonadIO m) => Router m α β -> α -> m (Maybe β)
- anyScheme :: Arrow ⇝ => URI ⇝ (Host, Path)
- scheme :: (ArrowChoice ⇝, ArrowZero ⇝) => CIAscii -> URI ⇝ (Host, Path)
- http :: (ArrowChoice ⇝, ArrowPlus ⇝, ArrowZero ⇝) => URI ⇝ (Host, Path)
- http' :: (ArrowChoice ⇝, ArrowZero ⇝) => URI ⇝ (Host, Path)
- https :: (ArrowChoice ⇝, ArrowZero ⇝) => URI ⇝ (Host, Path)