code: def test_update_implicit_index_dict_noop(self):
      data = [{"a": 1, "b": 2}, {"a": 2, "b": 3}]
      tbl = Table(data)
      view = tbl.view()
  
      # "b" does not exist in dataset, so no-op
      tbl.update(
          {
              "__INDEX__": [0],
              "a": [3],
          }
      )
      assert view.to_records() == [{"a": 3, "b": 2}, {"a": 2, "b": 3}]
  
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 50 for calling the TestUpdate obj's underlying member method code with example usage: obj.test_update_implicit_index_dict_noop() without return types