diff --git a/tractor/_discovery.py b/tractor/_discovery.py
index 9e520b3..bcfcc84 100644
--- a/tractor/_discovery.py
+++ b/tractor/_discovery.py
@@ -16,12 +16,14 @@ from ._state import current_actor, _runtime_vars
 
 @asynccontextmanager
 async def get_arbiter(
+
     host: str,
     port: int,
+
 ) -> typing.AsyncGenerator[Union[Portal, LocalPortal], None]:
-    """Return a portal instance connected to a local or remote
+    '''Return a portal instance connected to a local or remote
     arbiter.
-    """
+    '''
     actor = current_actor()
 
     if not actor:
@@ -33,16 +35,20 @@ async def get_arbiter(
         yield LocalPortal(actor, Channel((host, port)))
     else:
         async with _connect_chan(host, port) as chan:
+
             async with open_portal(chan) as arb_portal:
+
                 yield arb_portal
 
 
 @asynccontextmanager
 async def get_root(
-**kwargs,
+    **kwargs,
 ) -> typing.AsyncGenerator[Union[Portal, LocalPortal], None]:
+
     host, port = _runtime_vars['_root_mailbox']
     assert host is not None
+
     async with _connect_chan(host, port) as chan:
         async with open_portal(chan, **kwargs) as portal:
             yield portal
@@ -60,12 +66,16 @@ async def find_actor(
     """
     actor = current_actor()
     async with get_arbiter(*arbiter_sockaddr or actor._arb_addr) as arb_portal:
+
         sockaddr = await arb_portal.run_from_ns('self', 'find_actor', name=name)
+
         # TODO: return portals to all available actors - for now just
         # the last one that registered
         if name == 'arbiter' and actor.is_arbiter:
             raise RuntimeError("The current actor is the arbiter")
+
         elif sockaddr:
+
             async with _connect_chan(*sockaddr) as chan:
                 async with open_portal(chan) as portal:
                     yield portal
@@ -83,9 +93,12 @@ async def wait_for_actor(
     A portal to the first registered actor is returned.
     """
     actor = current_actor()
+
     async with get_arbiter(*arbiter_sockaddr or actor._arb_addr) as arb_portal:
+
         sockaddrs = await arb_portal.run_from_ns('self', 'wait_for_actor', name=name)
         sockaddr = sockaddrs[-1]
+
         async with _connect_chan(*sockaddr) as chan:
             async with open_portal(chan) as portal:
                 yield portal