Separate ComfyNodeV3 into an internal base class and one that only has the functions defined that a developer cares about overriding, reference ComfyNodeInternal in execution.py/server.py instead of ComfyNodeV3 to make the code not bound to a particular version of v3 schema (once placed on api)

comfy_api/internal/__init__.py

@@ -1,6 +1,10 @@
-class ComfyNodeInternal:
+from abc import ABC, abstractmethod
+
+class ComfyNodeInternal(ABC):
     """Class that all V3-based APIs inherit from for ComfyNode.
 
     This is intended to only be referenced within execution.py, as it has to handle all V3 APIs going forward."""
-    ...
-
+    @classmethod
+    @abstractmethod
+    def GET_NODE_INFO_V1(cls):
+        ...