code: def uninstall_all_passbands(local=True):
      
      pbdir = _pbdir_local if local else _pbdir_global
      for f in os.listdir(pbdir):
          pbpath = os.path.join(pbdir, f)
          logger.warning("deleting file: {}".format(pbpath))
          os.remove(pbpath)
docs: Uninstall all passbands, either globally or locally (need to call twice to
      delete ALL passbands)
  
      If local=False, you must have permission to access the installation directory