Add datatype to smartencoder

scintillation/averaging.py

@@ -109,6 +109,8 @@ class SmartJsonEncoder(json.JSONEncoder):
                 return o.tolist()
             elif isinstance(o, numpy.uint64):
                 return int(o)
+            elif isinstance(o, numpy.uint32):
+                return int(o)
             elif isinstance(o, datetime):
                 return o.isoformat()
             else: