Fix

bot.py

@@ -335,7 +335,7 @@ async def on_message(message):
 
 # *=========================================== Define Functions
 
-def num_tokens_from_string(string, model):
+def num_tokens_from_string(message, model):
     """
     The function `num_tokens_from_string` returns the number of tokens in a given string.
 
@@ -347,10 +347,9 @@ def num_tokens_from_string(string, model):
     tokens_per_name = 1
     chat_gpt_encoding = tiktoken.encoding_for_model(model)
 
-    num_tokens = len(chat_gpt_encoding.encode(string))
     num_tokens = 0
     num_tokens += tokens_per_message
-    for keys, values in string.items():
+    for keys, values in message.items():
         num_tokens += len(chat_gpt_encoding.encode(values))
         if keys == "role":
             num_tokens += tokens_per_name