code: def test_init_with_datetime(self) -> None:
      range1d = Range1d(
          start=dt.datetime(2016, 4, 28, 2, 20, 50),
          end=dt.datetime(2017, 4, 28, 2, 20, 50),
      )
      assert range1d.start == dt.datetime(2016, 4, 28, 2, 20, 50)
      assert range1d.end == dt.datetime(2017, 4, 28, 2, 20, 50)
      assert range1d.bounds is None
  
imports: from __future__ import annotations
  import pytest
  import datetime
  from math import isnan
  from unittest import mock
  from bokeh.core.validation import check_integrity, process_validation_issues
  from _util_models import check_properties_existence
  from bokeh.models import Range1d, DataRange1d, FactorRange
label_desc: Use image node_id 4 for calling the Test_Range1d obj's underlying member method code with example usage: obj.test_init_with_datetime() without return types