Island: Fix mypy issues in networkmap.py

monkey/monkey_island/cc/models/networkmap.py

@@ -1,6 +1,14 @@
 from dataclasses import dataclass
 from typing import Mapping, Sequence
 
+from monkey_island.cc.models import Machine
+
+
+@dataclass
+class Arc:
+    dst_machine: Machine  # noqa: F821
+    status: str
+
 
 # This is the most concise way to represent a graph:
 # Machine id as key, Arch list as a value
@@ -9,9 +17,3 @@ from typing import Mapping, Sequence
 @dataclass
 class NetworkMap:
     nodes: Mapping[str, Sequence[Arc]]  # noqa: F821
-
-
-@dataclass
-class Arc:
-    dst_machine: Machine  # noqa: F821
-    status: str