remove stray breakpoint, fix mypy warning

arguments.py

@@ -92,5 +92,5 @@ class TrainingArguments():
     max_instant_params: int = field(default=0, metadata={"help": "Maximum amount of paramters to optimize per step in millions"})
     churn_percent: int = field(default=100, metadata={"help": "The percentage of active parameters to replace when changeing active parameters"})
     eval_steps: int = field(default=-1, metadata={"help": "Number of optimization steps after wich to compute the evaluation loss"})
-    eval_prompt: str = field(default=None, metadata={"help": "A prompt to used during eval to check if the model is learning"})
+    eval_prompt: str | None = field(default=None, metadata={"help": "A prompt to used during eval to check if the model is learning"})
     reshufle_steps: int = field(default=50, metadata={"help": "Number of steps to take before changing the active parameters"})

datamodules.py

@@ -218,7 +218,6 @@ def create_data_module(tokenizer: transformers.PreTrainedTokenizer, data_args: D
             eval_dataset = dataset['eval']
         else:
             print('Splitting train dataset in train and validation according to `eval_dataset_size`')
-            breakpoint()
             dataset = dataset['train'].train_test_split(
                 test_size=data_args.eval_dataset_size, shuffle=True, seed=42
             )