sig/response.rbs in httpx-0.10.2 vs sig/response.rbs in httpx-0.11.0

@@ -25,10 +25,10 @@
     def content_type: () -> ContentType
     def complete?: () -> bool
 
     private
 
-    def initialize: (Request, _ToS, String, headers) -> untyped
+    def initialize: (Request, _ToS, String, headers?) -> untyped
     def no_data?: () -> bool
 
     class Body
       include _Writer
       include _Reader
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