code: def _GetMountpoints(only_physical=True):
    
    partitions = psutil.disk_partitions(all=not only_physical)
    return set(partition.mountpoint for partition in partitions)
docs: Fetches a list of mountpoints.
  
    Args:
      only_physical: Determines whether only mountpoints for physical devices
        (e.g. hard disks) should be listed. If false, mountpoints for things such
        as memory partitions or `/dev/shm` will be returned as well.
  
    Returns:
      A set of mountpoints.