basic interface modeled on go repo

libp2p/discovery/advertiser_interface.py

@@ -0,0 +1,14 @@
+from abc import ABC, abstractmethod
+
+class IDiscoverer(ABC):
+
+    def __init__(self):
+        pass
+
+    @abstractmethod
+    def advertise(self, service):
+        """
+        Advertise providing a specific service to the network
+        :param service: service that you provide
+        :raise Exception: network error
+        """

libp2p/discovery/discoverer_interface.py

@@ -0,0 +1,16 @@
+from abc import ABC, abstractmethod
+
+
+class IDiscoverer(ABC):
+
+    def __init__(self):
+        pass
+
+    @abstractmethod
+    def find_peers(self, service):
+        """
+        Find peers on the networking providing a particular service
+        :param service: service that peers must provide
+        :return: peerstore containing found peers on the network
+        :raise Exception: network error
+        """