Create requirements.txt

requirements.txt

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+gradio>=4.8.0,<5.0.0
+openai>=1.6.1,<2.0.0
+langchain>=0.1.0
+langchain-community>=0.0.10
+langchain-openai>=0.0.2
+chromadb>=0.4.18
+pydub>=0.25.1
+python-multipart>=0.0.6
+pypdf>=3.0.0
+pdf2image>=1.16.3
+tqdm>=4.65.0