class CollectionUtils(object) :
  def flatten_collection(collection_of_collections) :
      import itertools
      ret = itertools.chain(*collection_of_collections)
      return list(ret)

@@ -25,16 +25,32 @@
 ject) :%0A
+  @staticmethod%0A
   def fl
@@ -197,8 +197,122 @@
 st(ret)%0A
+  @staticmethod%0A  def chunkify(data, size=100) :%0A      return %5Bdata%5Bx:x+size%5D for x in range(0, len(data), size)%5D%0A

Update CollectionUtils.py