updated based on comments

libp2p/discovery/advertiser_interface.py

@@ -1,7 +1,7 @@
 from abc import ABC, abstractmethod
 # pylint: disable=too-few-public-methods
 
-class IDiscoverer(ABC):
+class IAdvertiser(ABC):
 
     def __init__(self):
         pass

libp2p/discovery/discoverer_interface.py

@@ -12,6 +12,6 @@ class IDiscoverer(ABC):
         """
         Find peers on the networking providing a particular service
         :param service: service that peers must provide
-        :return: peerstore containing found peers on the network
+        :return: PeerInfo generator that yields PeerInfo objects for discovered peers
         :raise Exception: network error
         """