add typing to security

libp2p/network/connection/raw_connection_interface.py

@@ -1,4 +1,4 @@
-from abc import ABC
+from abc import ABC, abstractmethod
 
 # pylint: disable=too-few-public-methods
 
@@ -7,3 +7,11 @@ class IRawConnection(ABC):
     """
     A Raw Connection provides a Reader and a Writer
     """
+
+    @abstractmethod
+    async def write(self, data: bytes) -> None:
+        pass
+
+    @abstractmethod
+    async def read(self) -> bytes:
+        pass