refactor: added mcp doc explanation, review changes

Author: yamanahlawat

docs/mcp/client.md

@@ -12,7 +12,7 @@ pip/uv-add "pydantic-ai-slim[mcp]"
 ```
 
 !!! note
-MCP integration requires Python 3.10 or higher.
+    MCP integration requires Python 3.10 or higher.
 
 ## Usage
 
@@ -34,7 +34,7 @@ You can use the [`async with agent`][pydantic_ai.Agent.__aenter__] context manag
 [Streamable HTTP](https://modelcontextprotocol.io/introduction#streamable-http) transport to a server.
 
 !!! note
-[`MCPServerStreamableHTTP`][pydantic_ai.mcp.MCPServerStreamableHTTP] requires an MCP server to be running and accepting HTTP connections before running the agent. Running the server is not managed by Pydantic AI.
+    [`MCPServerStreamableHTTP`][pydantic_ai.mcp.MCPServerStreamableHTTP] requires an MCP server to be running and accepting HTTP connections before running the agent. Running the server is not managed by Pydantic AI.
 
 Before creating the Streamable HTTP client, we need to run a server that supports the Streamable HTTP transport.
 
@@ -452,6 +452,8 @@ if __name__ == '__main__':
     mcp.run(transport='stdio')
 ```
 
+This server demonstrates elicitation by requesting structured booking details from the client when the `book_table` tool is called. Here's how to create a client that handles these elicitation requests:
+
 ```python {title="client_example.py" py="3.10" requires="restaurant_server.py" test="skip"}
 import asyncio
 from typing import Any

pydantic_ai_slim/pydantic_ai/mcp.py

@@ -40,13 +40,7 @@
 # after mcp imports so any import error maps to this file, not _mcp.py
 from . import _mcp, _utils, exceptions, messages, models
 
-__all__ = (
-    'MCPServer',
-    'MCPServerStdio',
-    'MCPServerHTTP',
-    'MCPServerSSE',
-    'MCPServerStreamableHTTP',
-)
+__all__ = 'MCPServer', 'MCPServerStdio', 'MCPServerHTTP', 'MCPServerSSE', 'MCPServerStreamableHTTP'
 
 TOOL_SCHEMA_VALIDATOR = pydantic_core.SchemaValidator(
     schema=pydantic_core.core_schema.dict_schema(