diff --git a/openai_cost_logger/openai_cost_logger_viz.py b/openai_cost_logger/openai_cost_logger_viz.py
index 39092a3..156c2fe 100644
--- a/openai_cost_logger/openai_cost_logger_viz.py
+++ b/openai_cost_logger/openai_cost_logger_viz.py
@@ -121,6 +121,7 @@ def plot_cost_by_day(path: str = DEFAULT_LOG_PATH, last_n_days: int = None) -> N
             last_n_days=last_n_days
         )
         
+
     @staticmethod
     def print_experiment_cost(experiment: str, path: str = DEFAULT_LOG_PATH) -> None:
         """Print the cost of the specified experiment. The name is case-insensitive.