fix lint and update docstring

Author: DNXie

src/forge/controller/actor.py

@@ -81,11 +81,11 @@ def options(
 
         # Pre-configure a single actor
         actor = await MyForgeActor.options(procs=1, hosts=1).as_actor(...)
-        await actor.shutdown()
+        await MyForgeActor.shutdown(actor)
 
         # Default usage without calling options
         actor = await MyForgeActor.as_actor(...)
-        await actor.shutdown()
+        await MyForgeActor.shutdown(actor)
         """
 
         attrs = {

src/forge/controller/provisioner.py

@@ -13,7 +13,7 @@
 import socket
 import uuid
 
-from typing import Any, Optional
+from typing import Any
 
 from monarch._src.actor.shape import NDSlice, Shape
 from monarch.actor import Actor, endpoint, HostMesh, ProcMesh, this_host