From c4adca718a3d7f08f08f146816b2272654756d43 Mon Sep 17 00:00:00 2001
From: Gyu-Ho Lee <gyuhox@gmail.com>
Date: Thu, 12 May 2016 11:07:32 -0700
Subject: [PATCH] Documentation: fix metadata.FromContext example

metadata.FromContext returns additional boolean value.
This fixes the example in metadata documentation.
---
 Documentation/grpc-metadata.md | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Documentation/grpc-metadata.md b/Documentation/grpc-metadata.md
index b387e880..928f5572 100644
--- a/Documentation/grpc-metadata.md
+++ b/Documentation/grpc-metadata.md
@@ -70,7 +70,8 @@ Metadata can be retrieved from context using `FromContext`:
 
 ```go
 func (s *server) SomeRPC(ctx context.Context, in *pb.SomeRequest) (*pb.SomeResponse, err) {
-    md := metadata.FromContext(ctx)
+    md, ok := metadata.FromContext(ctx)
+    // do something with metadata
 }
 ```