from mcp import Client from mcp.server import MCPServer mcp = MCPServer("Bookshop") @mcp.tool() def search_books(query: str) -> str: """Search the catalog by title or author.""" return f"Found 3 books matching {query!r}." async def main() -> None: async with Client(mcp) as client: result = await client.call_tool("search_books", {"query": "dune"}) print(result.structured_content)