I am new to neural-forecast and start trying an example: https://github.com/Nixtla/neuralforecast/blob/main/examples/getting_started.ipynb Y_df, X_df, _ = nf.data.datasets.long_horizon.LongHorizon.load('data', 'ILI') while get this error:

TypeError: sort_values() got an unexpected keyword argument 'ignore_index'

any idea what is the issue? Thanks.