don't copy the same request object for each image as it's not used after generation

main.py

@@ -103,6 +103,10 @@ def generate(request: GenerationRequest):
         else:
             images = model.sample(request)
 
+        del request.prompt
+        if request.image is not None:
+            del request.image
+
         seed = request.seed
         images_encoded = []
         for x in range(len(images)):
@@ -111,14 +115,11 @@ def generate(request: GenerationRequest):
             metadata.add_text("Description", request.prompt)
             metadata.add_text("Software", "NovelAI")
             metadata.add_text("Source", "Stable Diffusion "+model_hash)
-            request_copy = request.copy()
-            del request_copy.prompt
-            if request_copy.image is not None:
-                del request_copy.image
             if seed is not None:
-                request_copy.seed = seed
+                request.seed = seed
                 seed += 1
-            metadata.add_text("Comment", json.dumps(request_copy))
+            print(request, json.dumps(request))
+            metadata.add_text("Comment", json.dumps(request))
             #image = simplejpeg.encode_jpeg(images[x], quality=95) 
             image = Image.fromarray(images[x])
             #save pillow image with bytesIO