[Bugfix] Cannot find global function mlc.llm_chat_create (mlc-ai#1167)

Author: junrushao

python/mlc_chat/chat_module.py

@@ -13,6 +13,7 @@
 import tvm
 from tvm.runtime import disco  # pylint: disable=unused-import
 
+from .base import _LIB  # pylint: disable=unused-import
 from .interface.openai_api import ChatMessage
 
 # pylint: disable=line-too-long