code: def test_json_ext_dtype_reading_roundtrip(self):
      # GH#40255
      df = DataFrame(
          {
              "a": Series([2, NA], dtype="Int64"),
              "b": Series([1.5, NA], dtype="Float64"),
              "c": Series([True, NA], dtype="boolean"),
          },
          index=Index([1, NA], dtype="Int64"),
      )
      expected = df.copy()
      data_json = df.to_json(orient="table", indent=4)
      result = read_json(StringIO(data_json), orient="table")
      tm.assert_frame_equal(result, expected)
  
imports: from collections import OrderedDict
  import datetime
  import decimal
  from io import StringIO
  import json
  import pytest
  from pandas import NA, DataFrame, Index, array, read_json
  import pandas._testing
  from pandas.core.arrays.integer import Int64Dtype
  from pandas.core.arrays.string_ import StringDtype
  from pandas.core.series import Series
  from pandas.tests.extension.date import DateArray, DateDtype
  from pandas.tests.extension.decimal.array import DecimalArray, DecimalDtype
  from pandas.io.json._table_schema import as_json_table_type, build_table_schema
label_desc: Use image node_id 10 for calling the TestTableOrient obj's underlying member method code with example usage: obj.test_json_ext_dtype_reading_roundtrip() without return types