docs: stop presenting the in-memory client as the way to connect (#3443)

docs_src/client/tutorial006.py

@@ -1,31 +1,17 @@
+import anyio
+
 from mcp import Client
-from mcp.server import MCPServer
-from mcp.types import Completion, CompletionArgument, CompletionContext, PromptReference, ResourceTemplateReference
-
-mcp = MCPServer("Bookshop")
-
-GENRES = ["fiction", "non-fiction", "poetry"]
-
-
-@mcp.prompt()
-def recommend(genre: str) -> str:
-    """Ask for a recommendation in a genre."""
-    return f"Recommend one {genre} book from the catalog and say why."
-
-
-@mcp.completion()
-async def complete_genre(
-    ref: PromptReference | ResourceTemplateReference,
-    argument: CompletionArgument,
-    context: CompletionContext | None,
-) -> Completion | None:
-    return Completion(values=[genre for genre in GENRES if genre.startswith(argument.value)])
+from mcp.types import PromptReference
 
 
 async def main() -> None:
-    async with Client(mcp) as client:
+    async with Client("http://localhost:8000/mcp") as client:
         result = await client.complete(
             ref=PromptReference(type="ref/prompt", name="recommend"),
             argument={"name": "genre", "value": "p"},
         )
         print(result.completion.values)
+
+
+if __name__ == "__main__":
+    anyio.run(main)