docs: update sse_client and streamablehttp_client inline docs

Author: vipyne

src/mcp/client/sse.py

@@ -40,6 +40,7 @@ async def sse_client(
         headers: Optional headers to include in requests.
         timeout: HTTP timeout for regular operations.
         sse_read_timeout: Timeout for SSE read operations.
+        httpx_client_factory: McpHttpClientFactory.
         auth: Optional HTTPX authentication handler.
     """
     read_stream: MemoryObjectReceiveStream[SessionMessage | Exception]

src/mcp/client/streamable_http.py

@@ -460,6 +460,15 @@ async def streamablehttp_client(
     `sse_read_timeout` determines how long (in seconds) the client will wait for a new
     event before disconnecting. All other HTTP operations are controlled by `timeout`.
 
+    Args:
+        url: The SSE endpoint URL.
+        headers: Optional headers to include in requests.
+        timeout: HTTP timeout for regular operations.
+        sse_read_timeout: Timeout for SSE read operations.
+        terminate_on_close: Terminate session when stream closes.
+        httpx_client_factory: McpHttpClientFactory.
+        auth: Optional HTTPX authentication handler.
+
     Yields:
         Tuple containing:
             - read_stream: Stream for reading messages from the server

tests/client/test_session_group.py

@@ -272,12 +272,12 @@ async def test_disconnect_non_existent_server(self):
                 SseServerParameters(url="http://test.com/sse", timeout=10),
                 "sse",
                 "mcp.client.session_group.sse_client",
-            ),  # url, headers, timeout, sse_read_timeout
+            ),  # url, headers, timeout, sse_read_timeout, auth
             (
                 StreamableHttpParameters(url="http://test.com/stream", terminate_on_close=False),
                 "streamablehttp",
                 "mcp.client.session_group.streamablehttp_client",
-            ),  # url, headers, timeout, sse_read_timeout, terminate_on_close
+            ),  # url, headers, timeout, sse_read_timeout, terminate_on_close, auth
         ],
     )
     async def test_establish_session_parameterized(