code: def test_update_datetime_np(self):
      tbl = Table({"a": [datetime(2019, 7, 11, 11, 0)]})
      tbl.update([{"a": np.datetime64(datetime(2019, 7, 12, 11, 0))}])
      assert tbl.view().to_records() == [
          {"a": datetime(2019, 7, 11, 11, 0)},
          {"a": datetime(2019, 7, 12, 11, 0)},
      ]
  
imports: import numpy
  import pyarrow
  import pandas
  from datetime import date, datetime
  from perspective.table import Table
  from pytest import mark
label_desc: Use image node_id 33 for calling the TestUpdate obj's underlying member method code with example usage: obj.test_update_datetime_np() without return types