code: def test_numpy_dict(self):
      x = {"index": [1], "a": np.empty((1,), str)}
      tbl = Table({"index": int, "a": str}, index="index")
      tbl.update({"index": np.arange(5)})
      assert tbl.view().to_dict() == {
          "index": list(range(5)),
          "a": [None for _ in range(5)],
      }
  
imports: import numpy
  from datetime import date, datetime
  from pytest import mark
  from perspective.table import Table
label_desc: Use image node_id 21 for calling the TestUpdateNumpy obj's underlying member method code with example usage: obj.test_numpy_dict() without return types