eegprep.eeg_retrieve# eegprep.eeg_retrieve(ALLEEG, index)# Return dataset(s) from ALLEEG using EEGLAB-facing 1-based indices. Parameters: ALLEEG (list[dict[str, Any]] | None) index (int | list[int] | tuple[int, ...]) Return type: tuple[dict[str, Any] | list[dict[str, Any]], list[dict[str, Any]], int | list[int]]