feat: implement get_remote_address via delegation pattern

libp2p/network/connection/raw_connection.py

@@ -1,3 +1,7 @@
+from typing import (
+    Optional,
+)
+
 from libp2p.abc import (
     IRawConnection,
 )
@@ -42,3 +46,7 @@ class RawConnection(IRawConnection):
 
     async def close(self) -> None:
         await self.stream.close()
+
+    def get_remote_address(self) -> Optional[tuple[str, int]]:
+        """Delegate to the underlying stream's get_remote_address method."""
+        return self.stream.get_remote_address()

libp2p/network/stream/net_stream.py

@@ -78,6 +78,10 @@ class NetStream(INetStream):
     async def reset(self) -> None:
         await self.muxed_stream.reset()
 
+    def get_remote_address(self) -> Optional[tuple[str, int]]:
+        """Delegate to the underlying muxed stream."""
+        return self.muxed_stream.get_remote_address()
+
     # TODO: `remove`: Called by close and write when the stream is in specific states.
     #   It notifies `ClosedStream` after `SwarmConn.remove_stream` is called.
     # Reference: https://github.com/libp2p/go-libp2p-swarm/blob/99831444e78c8f23c9335c17d8f7c700ba25ca14/swarm_stream.go  # noqa: E501