chore: import upstream snapshot with attribution

docs_src/troubleshooting/tutorial006.py

@@ -0,0 +1,19 @@
+from pydantic import BaseModel
+
+from mcp.server import MCPServer
+from mcp.server.mcpserver import Context
+
+mcp = MCPServer("Bistro")
+
+
+class Confirmation(BaseModel):
+    confirm: bool
+
+
+@mcp.tool()
+async def book_table(date: str, ctx: Context) -> str:
+    """Book a table at the bistro."""
+    result = await ctx.elicit(f"Book a table for {date}?", schema=Confirmation)
+    if result.action == "accept" and result.data.confirm:
+        return f"Booked for {date}."
+    return "No booking made."