Check in manager class

src/brad/vdbe/manager.py

@@ -0,0 +1,24 @@
+import pathlib
+from typing import List
+from brad.vdbe.models import VirtualInfrastructure, VirtualEngine
+
+
+class VdbeManager:
+    """
+    Used to manage the current VDBE state.
+    """
+
+    @classmethod
+    def load_from(cls, serialized_infra_json: pathlib.Path) -> "VdbeManager":
+        with open(serialized_infra_json, "r", encoding="utf-8") as f:
+            infra = VirtualInfrastructure.model_validate_json(f.read())
+        return cls(infra)
+
+    def __init__(self, infra: VirtualInfrastructure) -> None:
+        self._infra = infra
+
+    def infra(self) -> VirtualInfrastructure:
+        return self._infra
+
+    def engines(self) -> List[VirtualEngine]:
+        return self._infra.engines