      """
      valid_inputs = {
          '2001-01-01 13:00': datetime.datetime(2001, 1, 1, 13, 00, tzinfo=utc),
          '2001-01-01T13:00': datetime.datetime(2001, 1, 1, 13, 00, tzinfo=utc),
          '2001-01-01T13:00Z': datetime.datetime(2001, 1, 1, 13, 00, tzinfo=utc)
          datetime.datetime(2001, 1, 1, 13, 00): datetime.datetime(2001, 1, 1, 13, 00, tzinfo=utc),
          datetime.datetime(2001, 1, 1, 13, 00, tzinfo=utc): datetime.datetime(2001, 1, 1, 13, 00, tzinfo=utc),
      }
      invalid_inputs = {
          'abc': ['Datetime has wrong format. Use one of these formats instead: YYYY-MM-DDThh:mm[:ss[.uuuuuu]][+HH:MM|-HH:MM|Z].'],
 
</s>
        '2001-01-01T13:00Z': datetime.datetime(2001, 1, 1, 13, 00, tzinfo=utc),
      """
      valid_inputs = {
          '2001-01-01 13:00': datetime.datetime(2001, 1, 1, 13, 00, tzinfo=utc),
          '2001-01-01T13:00': datetime.datetime(2001, 1, 1, 13, 00, tzinfo=utc),
        '2001-01-01T13:00Z': datetime.datetime(2001, 1, 1, 13, 00, tzinfo=utc),
          datetime.datetime(2001, 1, 1, 13, 00): datetime.datetime(2001, 1, 1, 13, 00, tzinfo=utc),
          datetime.datetime(2001, 1, 1, 13, 00, tzinfo=utc): datetime.datetime(2001, 1, 1, 13, 00, tzinfo=utc),
      }
      invalid_inputs = {
          'abc': ['Datetime has wrong format. Use one of these formats instead: YYYY-MM-DDThh:mm[:ss[.uuuuuu]][+HH:MM|-HH:MM|Z].'],
keep keep keep keep replace keep keep keep keep keep
 Ensure closables in request.FILES get closed. (#5262)

Ensure closables on `.FILES` get closed.
tests/test_fields.py