h5py protobuf==5.28.3 pyngrok sentence-transformers pdfplumber langchain-groq langchain-core PyMuPDF frontend pendulum # frontend nltk plotly scipy==1.13.1 flask pandas torch tensorflow==2.18.0 scikit-learn==1.2.2 joblib==1.4.2 tensorflow_hub==0.16.1 gensim bs4 spacy python-dotenv