update code (#9)

Co-authored-by: xuyang1 <xuyang1@microsoft.com>

.env.example

@@ -0,0 +1,27 @@
+# Global configs:
+USE_AZURE=True
+MAX_RETRY=10
+RETRY_WAIT_SECONDS=20
+DUMP_CHAT_CACHE=True
+USE_CHAT_CACHE=True
+DUMP_EMBEDDING_CACHE=True
+USE_EMBEDDING_CACHE=True
+LOG_LLM_CHAT_CONTENT=False
+CHAT_FREQUENCY_PENALTY=0.0
+CHAT_PRESENCE_PENALTY=0.0
+
+# embedding model configs:
+EMBEDDING_OPENAI_API_KEY=your_api_key
+EMBEDDING_AZURE_API_BASE=your_api_base
+EMBEDDING_AZURE_API_VERSION=your_api_version
+EMBEDDING_MODEL=text-embedding-3-small
+
+
+# chat model configs:
+CHAT_OPENAI_API_KEY=your_api_key # 5c
+CHAT_AZURE_API_BASE=your_api_base
+CHAT_AZURE_API_VERSION=your_api_version
+CHAT_MODEL=your_model_version
+CHAT_MAX_TOKENS=3000
+CHAT_TEMPERATURE=0.7
+CHAT_STREAM=True