refactor for sprint

muxer/mplex/muxed_connection.py

@@ -0,0 +1,41 @@
+from .muxed_connection_interface import IMuxedConn
+
+class MuxedConn(IMuxedConn):
+    """
+    reference: https://github.com/libp2p/go-mplex/blob/master/multiplex.go
+    """
+    def __init__(self, conn, initiator):
+        """
+        create a new muxed connection
+        :param conn: an instance of raw connection
+        :param initiator: boolean to prevent multiplex with self
+        """
+        self.raw_conn = conn
+        self.initiator = initiator
+
+    def close(self):
+        """
+        close the stream muxer and underlying raw connection
+        """
+        pass
+
+    def is_closed(self):
+        """
+        check connection is fully closed
+        :return: true if successful
+        """
+        pass
+
+    def open_stream(self, protocol_id, stream_name):
+        """
+        creates a new muxed_stream
+        :return: a new stream
+        """
+        pass
+
+    def accept_stream(self):
+        """
+        accepts a muxed stream opened by the other end
+        :return: the accepted stream
+        """
+        pass