input: Write a function to return a datetime object for Sunday March 7, 5:30 PM. If the function is called, it should return the specified datetime.
  
  from datetime import datetime
  
  def get_date_time():
      dt = datetime(year=2021, month=3, day=7, hour=17, minute=30)
      return dt
  
  date_time = get_date_time()
  print(date_time)
  assert get_date_time() == datetime(2021, 3, 7, 17, 30)
  assert str(get_date_time()) == "2021-03-07 17:30:00"
output: def get_date_time():
      dt = datetime(year=2021, month=3, day=7, hour=17, minute=30)
      return dt