diff --git a/bin/map/src/types.rs b/bin/map/src/types.rs
new file mode 100644
index 000000000..1ad737b1b
--- /dev/null
+++ b/bin/map/src/types.rs
@@ -0,0 +1,2 @@
+//pub type NodeId = String;
+//pub type NodeInfo = String;