Update

Author: limingxinleo

src/Http/V2/Client.php

@@ -77,7 +77,7 @@ private function transformResponse(SwResponse $request): ResponseInterface
         return new Response(
             $request->streamId,
             $request->statusCode,
-            $request->headers,
+            $request->headers ?? [],
             $request->data
         );
     }

src/Http/V2/Response.php

@@ -15,7 +15,7 @@
 
 class Response implements ResponseInterface
 {
-    public function __construct(protected int $streamId, protected int $statusCode, protected ?array $headers, protected ?string $body)
+    public function __construct(protected int $streamId, protected int $statusCode, protected array $headers, protected ?string $body)
     {
     }
 
@@ -29,7 +29,7 @@ public function getStatusCode(): int
         return $this->statusCode;
     }
 
-    public function getHeaders(): ?array
+    public function getHeaders(): array
     {
         return $this->headers;
     }