code: def test_DatetimeUnits(self) -> None:
      assert tuple(bce.DatetimeUnits) == (
          "microseconds",
          "milliseconds",
          "seconds",
          "minsec",
          "minutes",
          "hourmin",
          "hours",
          "days",
          "months",
          "years",
      )
  
imports: from __future__ import annotations
  import pytest
  from bokeh.colors import named
  from bokeh.palettes import __palettes__
  from tests.support.util.api import verify_all
  import bokeh.core.enums
label_desc: Use image node_id 8 for calling the Test_bce obj's underlying member method code with example usage: obj.test_DatetimeUnits() without return types