code: def encode(self, obj):
      return obj.strftime("%Y-%m-%dT%H:%M:%S.%f")
  
imports: import datetime
  import json
  import os
  from io import BufferedReader, FileIO
  from pathlib import Path
  from typing import Tuple
  from hashfs import HashFS
  from tinydb import TinyDB
  from tinydb_serialization import Serializer, SerializationMiddleware
  import sacred.optional
label_desc: Use image node_id 1 for calling the DateTimeSerializer obj's underlying member method code with example usage: obj.encode(obj) and returns: obj