From b0b66996a08493b32249e44046a8a8e72f1b3baf Mon Sep 17 00:00:00 2001
From: Trivikram Kamat <16024985+trivikr@users.noreply.github.com>
Date: Mon, 27 Apr 2020 20:15:24 +0000
Subject: [PATCH] Convert isa method to an arrow function

---
 .../smithy/typescript/codegen/StructureGenerator.java       | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/StructureGenerator.java b/smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/StructureGenerator.java
index f158e98664b..d6ba6f1ade2 100644
--- a/smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/StructureGenerator.java
+++ b/smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/StructureGenerator.java
@@ -174,9 +174,9 @@ private void renderStructureNamespace() {
         writer.addImport("isa", "__isa", "@aws-sdk/smithy-client");
         Symbol symbol = symbolProvider.toSymbol(shape);
         writer.openBlock("export namespace $L {", "}", symbol.getName(), () -> {
-            writer.openBlock("export function isa(o: any): o is $L {", "}", symbol.getName(), () -> {
-                writer.write("return __isa(o, $S);", shape.getId().getName());
-            });
+            writer.write("export const isa = (o: any): o is $L => __isa(o, $S);",
+                symbol.getName(), shape.getId().getName()
+            );
         });
     }
 }