code: def test_update_np_datetime_partial(self):
      tbl = Table(
          {
              "a": [np.datetime64(datetime(2019, 7, 11, 11, 0))],
              "b": [1],
          },
          index="b",
      )
  
      tbl.update(
          {
              "a": np.array(
                  [datetime(2019, 7, 12, 11, 0)], dtype=datetime
              ),
              "b": np.array([1]),
          }
      )
  
      assert tbl.view().to_dict() == {
          "a": [datetime(2019, 7, 12, 11, 0)],
          "b": [1],
      }
  
imports: import numpy
  from datetime import date, datetime
  from pytest import mark
  from perspective.table import Table
label_desc: Use image node_id 14 for calling the TestUpdateNumpy obj's underlying member method code with example usage: obj.test_update_np_datetime_partial() without return types