Added missing notes; Minor formatting fixes

camel/model_backend.py

@@ -69,6 +69,7 @@ class OpenAIModel(ModelBackend):
         num_prompt_tokens = len(encoding.encode(string))
         gap_between_send_receive = 15 * len(kwargs["messages"])
         num_prompt_tokens += gap_between_send_receive
+
         if openai_new_api:
             # Experimental, add base_url
             if BASE_URL:

chatdev/utils.py

@@ -92,8 +92,11 @@ def escape_string(value):
     return value
 
 def is_url(url):
-  try:
-    result = urlparse(url)
-    return all([result.scheme, result.netloc])
-  except ValueError:
-    return False
+    """
+    Adapted from https://stackoverflow.com/questions/7160737/how-to-validate-a-url-in-python-malformed-or-not
+    """
+    try:
+       result = urlparse(url)
+       return all([result.scheme, result.netloc])
+    except ValueError:
+       return False