code: def add_msg_creation_time(
      context: TransformContext,
  ) -> TransformContext:
      context.output["created_at"] = DateTime.now()
      return context
  
imports: from enum import Enum
  from typing import List
  from typing import Optional
  from ...client.api import APIRegistry
  from ...node.credentials import SyftVerifyKey
  from ...serde.serializable import serializable
  from ...store.linked_obj import LinkedObject
  from ...types.datetime import DateTime
  from ...types.syft_object import SYFT_OBJECT_VERSION_1
  from ...types.syft_object import SyftObject
  from ...types.transforms import TransformContext
  from ...types.transforms import add_credentials_for_key
  from ...types.transforms import add_node_uid_for_key
  from ...types.transforms import generate_id
  from ...types.transforms import transform
  from ...types.uid import UID
  from ...util import options
  from ...util.colors import SURFACE
label_desc: Use image node_id 1 for calling a global function with example usage: add_msg_creation_time(context) and returns: context