Update _internals.py

Fixing to compare to b' ' instead of (str)' '

Author: noamgat

llama_cpp/_internals.py

@@ -201,7 +201,7 @@ def detokenize(self, tokens: List[int], special: bool = False) -> bytes:
         # NOTE: Llama1 models automatically added a space at the start of the prompt
         # this line removes a leading space if the first token is a beginning of sentence token
         return (
-            output[1:] if len(tokens) > 0 and tokens[0] == self.token_bos() and output[0:1] == ' ' else output
+            output[1:] if len(tokens) > 0 and tokens[0] == self.token_bos() and output[0:1] == b' ' else output
         )
 
     # Extra