code: def get_all_comments(chebi_ids):
      '''Returns all comments'''
      all_comments = [get_comments(chebi_id) for chebi_id in chebi_ids]
      return [x for sublist in all_comments for x in sublistf get_all_comments(chebi_ids):
      '''Returns all comments'''
      all_comments = [get_comments(chebi_id) for chebi_id in chebi_ids]
      return [x for sublist in all_comments for x in sublist]
docs: Returns all comments