Update utils.py

utils.py

@@ -51,9 +51,8 @@ from langchain_community.vectorstores import Chroma
 from langchain_core.messages import BaseMessage, FunctionMessage
 from langchain_core.output_parsers import StrOutputParser
 from langchain_core.pydantic_v1 import BaseModel, Field
-from langchain_core.runnables import RunnablePassthrough
+from langchain_core.runnables import RunnablePassthrough, RunnableSequence
 from langchain.text_splitter import RecursiveCharacterTextSplitter
-from langchain_core import  PromptTemplate, RunnableSequence
 from chromadb.errors import InvalidDimensionException
 import fitz  # PyMuPDF
 import docx