fixes and modelgen insert

tools/generator/base.py

@@ -0,0 +1,23 @@
+"""
+Base Generator
+
+Abstract base class for all code generators.
+"""
+
+from abc import ABC, abstractmethod
+from pathlib import Path
+from typing import Any
+
+
+class BaseGenerator(ABC):
+    """Abstract base for code generators."""
+
+    @abstractmethod
+    def generate(self, models: Any, output_path: Path) -> None:
+        """Generate code for the given models to the specified path."""
+        pass
+
+    @abstractmethod
+    def file_extension(self) -> str:
+        """Return the file extension for this format."""
+        pass