phase 1

modelgen/helpers.py

@@ -44,6 +44,17 @@ def get_list_inner(type_hint: Any) -> str:
     return "str"
 
 
+def is_dataclass_type(type_hint: Any) -> bool:
+    """Check if type is a dataclass (nested model reference)."""
+    return isinstance(type_hint, type) and dc.is_dataclass(type_hint)
+
+
+def get_list_inner_type(type_hint: Any) -> Any:
+    """Get the raw inner type of List[T] (not stringified)."""
+    args = get_args(type_hint)
+    return args[0] if args else None
+
+
 def get_field_default(field: dc.Field) -> Any:
     """Get default value from dataclass field."""
     if field.default is not dc.MISSING: