def METHOD_NAME(tombstone_deletion_info: str) -> datetime.datetime:
    """
    Parse a datetime value out of an sstable tombstone dump.
    Example input is: '{ "name" : "name_list", "deletion_info" : { "marked_deleted" : "2023-01-03T18:06:36.559369Z",
     "local_delete_time" : "2023-01-03T18:06:36Z" } },'
    Example Output:  datetime.datetime(2023, 1, 3, 18, 5, 58)
    """
    tombstone_dict = json.loads(tombstone_deletion_info[:-1])
    deletion_date, deletion_time = tombstone_dict['deletion_info']['marked_deleted'].split('T')
    deletion_hour, deletion_minutes, deletion_seconds = deletion_time.split(':')
    deletion_seconds = deletion_seconds.split('.')[0]
    full_deletion_date = f'{deletion_date} {deletion_hour}:{deletion_minutes}:{deletion_seconds}'
    full_deletion_date_datetime = datetime.datetime.strptime(full_deletion_date, '%Y-%m-%d %H:%M:%S')
    return full_deletion_date_datetime