feat: MapIPEndNodeRequirement proto declaration

config.py

@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 from typing import List, Tuple
-from protos.bfcp_pb2 import NodeTable
+from protos.bfcp_pb2 import NodeTable, EndNodeRequirement
 from google.protobuf import text_format
 
 
@@ -56,3 +56,4 @@ def write_to_file(self, file_dir: str, node_table: NodeTable) -> None:
         file = open(file_dir, 'w')
         file.write(text_proto)
         file.close()
+

protos/bfcp.proto

@@ -254,3 +254,8 @@ message AESKey {
     // encrypted with the public key of the receiver
     bytes key = 1;
 }
+
+// Dictionary that stores a pair (ip_address: string, EndNodeRequirement)
+message MapIPEndNodeRequirement {
+    map<string, EndNodeRequirement> table = 1;
+}