fix cassette hashing

docs/_scripts/assets/nock_setup_preamble.ts

@@ -24,14 +24,16 @@ function decompressData(compressedString: string): NockCassetteData {
   return msgpack.decode(decompressed) as NockCassetteData;
 }
 
-// deno-lint-ignore no-unused-vars
 class HashedCassette {
+  hash: string;
   private recording = true;
 
   constructor(
     private readonly cassettePath: string,
-    private readonly hash: string
-  ) {}
+    hash: string
+  ) {
+    this.hash = hash;
+  }
 
   async enter() {
     try {

docs/_scripts/assets/vcr_setup_preamble.py

@@ -63,7 +63,7 @@ class HashedCassette:
                 content = f.read()
             try:
                 cassette_data = serializer.deserialize(content)
-            except Exception as e:
+            except Exception:
                 os.remove(self.cassette_path)
             else:
                 existing_hash = cassette_data.get("cassette_hash")
@@ -96,7 +96,7 @@ class HashedCassette:
                 content = f.read()
             try:
                 cassette_data = serializer.deserialize(content)
-            except Exception as e:
+            except Exception:
                 return result
             # Update the cassette data with the expected hash.
             if cassette_data.get("cassette_hash") != self.hash_value: