Migrate to new project structure.

libp2p/peer/peermetadata_interface.py

@@ -0,0 +1,25 @@
+from abc import ABC, abstractmethod
+
+
+class IPeerMetadata(ABC):
+
+    def __init__(self):
+        pass
+
+    @abstractmethod
+    def get(self, peer_id, key):
+        """
+        :param peer_id: peer ID to lookup key for
+        :param key: key to look up
+        :return: value at key for given peer
+        :raise Exception: peer ID not found
+        """
+
+    @abstractmethod
+    def put(self, peer_id, key, val):
+        """
+        :param peer_id: peer ID to lookup key for
+        :param key: key to associate with peer
+        :param val: value to associated with key
+        :raise Exception: unsuccessful put
+        """