diff --git a/smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/CodegenUtils.java b/smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/CodegenUtils.java
index 4c231047e1a..e1799e9ee1e 100644
--- a/smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/CodegenUtils.java
+++ b/smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/CodegenUtils.java
@@ -206,13 +206,16 @@ static void writeClientCommandBlobPayloadInputType(
         writer.addImport("BlobTypes", null, TypeScriptDependency.AWS_SDK_TYPES);
 
         writer.writeDocs("@public");
-        writer.openBlock("export type $LType = Omit<$T, $S> & {", "};",
+        writer.write(
+            """
+            export type $LType = Omit<$T, $S> & {
+              $L: BlobTypes;
+            };
+            """,
             typeName,
             containerSymbol,
             memberName,
-            () -> {
-                writer.write("$1L$2L: BlobTypes;", memberName, optionalSuffix);
-            }
+            memberName + optionalSuffix
         );
 
         writer.writeDocs("@public\n\nThe input for {@link " + commandName + "}.");
@@ -233,13 +236,16 @@ static void writeClientCommandBlobPayloadOutputType(
         writer.addDependency(TypeScriptDependency.UTIL_STREAM);
 
         writer.writeDocs("@public");
-        writer.openBlock("export type $LType = Omit<$T, $S> & {", "};",
+        writer.write(
+            """
+            export type $LType = Omit<$T, $S> & {
+              $L: Uint8ArrayBlobAdapter;
+            };
+            """,
             typeName,
             containerSymbol,
             memberName,
-            () -> {
-                writer.write("$1L$2L: Uint8ArrayBlobAdapter;", memberName, optionalSuffix);
-            }
+            memberName + optionalSuffix
         );
 
         writer.writeDocs("@public\n\nThe output of {@link " + commandName + "}.");
diff --git a/smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/integration/HttpBindingProtocolGenerator.java b/smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/integration/HttpBindingProtocolGenerator.java
index dda49060e48..e4a84cb2410 100644
--- a/smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/integration/HttpBindingProtocolGenerator.java
+++ b/smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/integration/HttpBindingProtocolGenerator.java
@@ -200,7 +200,6 @@ public void generateSharedComponents(GenerationContext context) {
         generateDocumentBodyShapeSerializers(context, serializingDocumentShapes);
         generateDocumentBodyShapeDeserializers(context, deserializingDocumentShapes);
         HttpProtocolGeneratorUtils.generateMetadataDeserializer(context, getApplicationProtocol().getResponseType());
-        HttpProtocolGeneratorUtils.generateCollectBody(context);
         HttpProtocolGeneratorUtils.generateCollectBodyString(context);
         HttpProtocolGeneratorUtils.generateHttpBindingUtils(context);
     }
diff --git a/smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/integration/HttpProtocolGeneratorUtils.java b/smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/integration/HttpProtocolGeneratorUtils.java
index 5ac122b5997..1df6a2194a1 100644
--- a/smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/integration/HttpProtocolGeneratorUtils.java
+++ b/smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/integration/HttpProtocolGeneratorUtils.java
@@ -247,26 +247,15 @@ static void generateMetadataDeserializer(GenerationContext context, SymbolRefere
         writer.write("");
     }
 
-    /**
-     * Imports a response body stream collector. This function converts the low-level response body stream to
-     * Uint8Array binary data.
-     *
-     * @param context The generation context.
-     */
-    static void generateCollectBody(GenerationContext context) {
-        TypeScriptWriter writer = context.getWriter();
-        writer.addImport("collectBody", null, TypeScriptDependency.AWS_SMITHY_CLIENT);
-    }
-
     /**
      * Writes a function converting the low-level response body stream to utf-8 encoded string. It depends on
-     * response body stream collector {@link #generateCollectBody(GenerationContext)}.
+     * response body stream collector.
      *
      * @param context The generation context
      */
     static void generateCollectBodyString(GenerationContext context) {
         TypeScriptWriter writer = context.getWriter();
-
+        writer.addImport("collectBody", null, TypeScriptDependency.AWS_SMITHY_CLIENT);
         writer.addImport("SerdeContext", "__SerdeContext", TypeScriptDependency.SMITHY_TYPES);
         writer.write("// Encode Uint8Array data into string with utf-8.");
         writer.write("const collectBodyString = (streamBody: any, context: __SerdeContext): Promise<string> => "
diff --git a/smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/integration/HttpRpcProtocolGenerator.java b/smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/integration/HttpRpcProtocolGenerator.java
index da341e625d5..6c5c4005088 100644
--- a/smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/integration/HttpRpcProtocolGenerator.java
+++ b/smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/integration/HttpRpcProtocolGenerator.java
@@ -128,7 +128,6 @@ public void generateSharedComponents(GenerationContext context) {
         generateDocumentBodyShapeSerializers(context, serializingDocumentShapes);
         generateDocumentBodyShapeDeserializers(context, deserializingDocumentShapes);
         HttpProtocolGeneratorUtils.generateMetadataDeserializer(context, getApplicationProtocol().getResponseType());
-        HttpProtocolGeneratorUtils.generateCollectBody(context);
         HttpProtocolGeneratorUtils.generateCollectBodyString(context);
 
         TypeScriptWriter writer = context.getWriter();