aaronmarkham commented on a change in pull request #12340: Add a tutorial for 
control flow operators.
URL: https://github.com/apache/incubator-mxnet/pull/12340#discussion_r212779049
 
 

 ##########
 File path: docs/tutorials/control_flow/ControlFlowTutorial.md
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 @@ -0,0 +1,386 @@
+
+MXNet currently provides three control flow operators: `cond`, `foreach` and 
`while_loop`. Like other MXNet operators, they all have a version for NDArray 
and a version for Symbol. These two versions have exactly the same semantics. 
We can take advantage of this and use them in Gluon to hybridize models.
+
+In this tutorial, we use a few examples to demonstrate the use of control flow 
operators in Gluon and show how a model that requires control flow is 
hybridized.
+
+# Prepare running the code
+
+
+```python
+import mxnet as mx
+from mxnet.gluon import HybridBlock
+```
+
+# foreach
 
 Review comment:
   I'd go to two hashes for your subsections and only use the single hash for 
the document title.

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