fix axolotl training args dataclass annotation

src/axolotl/utils/trainer.py

@@ -5,7 +5,7 @@ import logging
 import math
 import os
 import sys
-from dataclasses import field
+from dataclasses import dataclass, field
 from pathlib import Path
 from typing import Optional
 
@@ -29,6 +29,7 @@ from axolotl.utils.schedulers import (
 LOG = logging.getLogger("axolotl")
 
 
+@dataclass
 class AxolotlTrainingArguments(TrainingArguments):
     """
     Extend the base TrainingArguments for axolotl helpers
@@ -188,7 +189,7 @@ def setup_trainer(cfg, train_dataset, eval_dataset, model, tokenizer):
     if cfg.save_safetensors:
         training_arguments_kwargs["save_safetensors"] = cfg.save_safetensors
 
-    training_args = AxolotlTrainingArguments(
+    training_args = AxolotlTrainingArguments(  # pylint: disable=unexpected-keyword-arg
         per_device_train_batch_size=cfg.micro_batch_size,
         per_device_eval_batch_size=cfg.eval_batch_size
         if cfg.eval_batch_size is not None