Update utils.py

utils.py

@@ -53,7 +53,7 @@ from langchain_core.output_parsers import StrOutputParser
 from langchain_core.pydantic_v1 import BaseModel, Field
 from langchain_core.runnables import RunnablePassthrough
 from langchain.text_splitter import RecursiveCharacterTextSplitter
-from langchain_core import LLM, PromptTemplate, RunnableSequence
+from langchain_core import  PromptTemplate, RunnableSequence
 from chromadb.errors import InvalidDimensionException
 import fitz  # PyMuPDF
 import docx