docs: def clean(context, days_ago, yes):
      """Clean up files from "old" analyses runs."""
      number_of_days_ago = dt.datetime.now() - dt.timedelta(days=days_ago)
      analyses = context.obj['store'].analyses(
          status='completed',
          before=number_of_days_ago,
          deleted=False,
      )
      for analysis_obj in analyses:
          LOG.debug(f"checking analysis: {analysis_obj.family} ({analysis_obj.id})")
          latest_analysis = context.obj['store'].analyses(family=analysis_obj.family).first()
          if analysis_obj != latest_analysis:
              print(click.style(f"{analysis_obj.family}: family has been re-started", fg='yellow'))
          else:
              print(f"delete analysis: {analysis_obj.family} ({analysis_obj.id})")
              context.invoke(delete, analysis_id=analysis_obj.id, yes=yes)