add helper to verify the correct model output file exists (#2245)

* add helper to verify the correct model output file exists

* more checks using helper

* chore: lint

* fix import and relora model check

* workaround for trl trainer saves

* remove stray print

src/axolotl/cli/utils.py

@@ -27,7 +27,6 @@ def add_options_from_dataclass(config_class: Type[Any]):
                 field_type = next(
                     t for t in get_args(field_type) if not isinstance(t, NoneType)
                 )
-
             if field_type == bool:
                 field_name = field.name.replace("_", "-")
                 option_name = f"--{field_name}/--no-{field_name}"