code: def test_tableset_from_csv_invalid_dir(self):
      with self.assertRaises(IOError):
          TableSet.from_csv("quack")
  
imports: import json
  import shutil
  from collections import OrderedDict
  from io import StringIO
  from agate import Table, TableSet
  from agate.computations import Formula
  from agate.data_types import Number, Text
  from agate.testcase import AgateTestCase
label_desc: Use image node_id 7 for calling the TestTableSet obj's underlying member method code with example usage: obj.test_tableset_from_csv_invalid_dir() without return types