Sync fastapi docs from f5c6e9b4 on 2026-10-11

docs_src/opentelemetry/tutorial001_py310.py

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+from fastapi import FastAPI
+
+app = FastAPI()
+
+
+@app.get("/items/{item_id}")
+async def read_item(item_id: int):
+    return {"item_id": item_id}

docs_src/opentelemetry/tutorial002_py310.py

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+from fastapi import FastAPI
+from opentelemetry.sdk.trace import TracerProvider
+from opentelemetry.sdk.trace.export import BatchSpanProcessor, ConsoleSpanExporter
+
+tracer_provider = TracerProvider()
+tracer_provider.add_span_processor(BatchSpanProcessor(ConsoleSpanExporter()))
+
+app = FastAPI(telemetry={"tracer_provider": tracer_provider})
+
+
+@app.get("/items/{item_id}")
+async def read_item(item_id: int):
+    return {"item_id": item_id}

docs_src/opentelemetry/tutorial003_py310.py

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+from fastapi import FastAPI
+
+app = FastAPI(telemetry={"operation_spans": False})
+
+
+@app.get("/items/{item_id}")
+async def read_item(item_id: int):
+    return {"item_id": item_id}