old_contents: from sharepa.search import ShareSearch, basic_search  # noqa
  from sharepa.analysis import bucket_to_dataframe, merge_dataframes  # noqa
  from sharepa.helpers import source_agg, source_counts
  
new_contents: from sharepa.search import ShareSearch, basic_search  # noqa
  from sharepa.analysis import bucket_to_dataframe, merge_dataframes  # noqa
  
subject: Remove helper functions from sharepa init