🐛 fix(openaicaller.py): fix error in generate_response method where error_call argument is not properly handled

✨ feat(openaicaller.py): add default value for error_call argument in generate_response method to prevent potential errors

src/utils/openaicaller.py

@@ -83,10 +83,16 @@ class openai_caller:
     # async def generate_response(self, error_call=None, **kwargs):
     async def generate_response(*args, **kwargs):
         self = args[0]
-        if args.get("error_call", None) != None:
-            error_call = args[1]
+        if len(args) > 1:
+            error_call = args[1] or nothing
         else:
 
+            async def nothing(x):
+                return x
+
+            error_call = nothing
+        if error_call == None:
+                
                 async def nothing(x):
                     return x