adding first setup for network obj

networkcommons/network/_network.py

@@ -1,6 +1,15 @@
+from __future__ import annotations
+
+from networkcommons._noi._noi import Noi
 
 class Network:
 
-    def __init__(self):
+    def __init__(self,
+                 noi: Noi | list[str] | list[list[str]] | dict[str, list[str]],
+                 universe: str | None = "omnipath"):
+        self.universe = universe
+        self.noi = noi
+
+
+
 
-        pass