code: def test_table_index_float_with_none(self):
      tbl = Table(
          {"a": [0.0, 1.5, 2.5, None, None], "b": [4, 3, 2, 1, 0]},
          index="a",
      )
      assert tbl.view().to_dict() == {
          "a": [None, 0, 1.5, 2.5],
          "b": [0, 4, 3, 2],
      }
  
imports: import sys
  from datetime import date, datetime
  from perspective.core.exception import PerspectiveError
  from perspective.table import Table
  from perspective.table._state import _PerspectiveStateManager
  from perspective.table.libpsppy import PerspectiveCppError, t_filter_op
  from pytest import raises
label_desc: Use image node_id 44 for calling the TestTable obj's underlying member method code with example usage: obj.test_table_index_float_with_none() without return types