Fix: Python docs examples (#2255)

* feat: client example

* fix: batch i

* fix: batch ii

* fix: batch iii

* fix: batch iv

sdks/python/examples/fastapi_blog/worker.py

@@ -0,0 +1,30 @@
+# > Worker
+import asyncio
+
+from aiohttp import ClientSession
+
+from hatchet_sdk import Context, EmptyModel, Hatchet
+
+hatchet = Hatchet()
+
+
+async def fetch(session: ClientSession, url: str) -> bool:
+    async with session.get(url) as response:
+        return response.status == 200
+
+
+@hatchet.task(name="Fetch")
+async def hello_from_hatchet(input: EmptyModel, ctx: Context) -> dict[str, int]:
+    num_requests = 10
+
+    async with ClientSession() as session:
+        tasks = [
+            fetch(session, "https://docs.hatchet.run/home") for _ in range(num_requests)
+        ]
+
+        results = await asyncio.gather(*tasks)
+
+        return {"count": results.count(True)}
+
+
+# !!