docs/uzlib: Add description of DecompIO.init().
@@ -43,3 +43,11 @@ Functions
This class is MicroPython extension. It's included on provisional
basis and may be changed considerably or removed in later versions.
+
+ .. method:: init(stream)
+
+ Reinitialize DecompIO object to handle a new *stream*. This allows
+ to reuse the same DecompIO instance to handle multiple decompression
+ streams, instead of allocating a new instance each time, which helps
+ to avoid `fragmentation`. After reinitialization, the same values
+ for *wbits* and *dictbuf* are used, as were passed to the constructor.
