code: def default_datetime():
      """Return default datetime"""
      return datetime.datetime(1903, 4, 25, 0, 0, 0)
  
imports: import contextlib
  import copy
  import datetime
  import os
  from contextlib import contextmanager
  from falcon import testing
  import orion.algo.space
  import orion.core.io.experiment_builder
  from orion.core.io.space_builder import SpaceBuilder
  from orion.core.worker.producer import Producer
  from orion.serving.webapi import WebApi
  from orion.testing.state import OrionState
label_desc: Use image node_id 1 for calling a global function with example usage: default_datetime() and returns: datetime