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+# （可选但推荐）设置您想要发送 traces 的项目名称，例如 'my-awesome-project'
+# To separate your traces from other application
+LANGSMITH_PROJECT=new-agent
+
+# Add API keys for connecting to LLM providers, data sources, and other integrations here
+LANGSMITH_API_KEY=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
+
+# 通常还需要设置 LangChain 的跟踪端点，默认就是以下地址，通常无需修改
+LANGCHAIN_TRACING_V2=true
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