code: def test_from_json_file(self):
      tableset1 = TableSet(self.tables.values(), self.tables.keys())
      tableset2 = TableSet.from_json("examples/test_tableset.json")
  
      with open("examples/test_tableset.json") as f:
          filelike = StringIO(f.read())
  
      tableset3 = TableSet.from_json(filelike)
  
      self.assertSequenceEqual(
          tableset1.column_names,
          tableset2.column_names,
          tableset3.column_names,
      )
      self.assertSequenceEqual(
          [type(t) for t in tableset1.column_types],
          [type(t) for t in tableset2.column_types],
          [type(t) for t in tableset3.column_types],
      )
  
      self.assertEqual(len(tableset1), len(tableset2), len(tableset3))
  
      for name in ["table1", "table2", "table3"]:
          self.assertEqual(
              len(tableset1[name].columns),
              len(tableset2[name].columns),
              len(tableset3[name].columns),
          )
          self.assertEqual(
              len(tableset1[name].rows),
              len(tableset2[name].rows),
              len(tableset3[name].rows),
          )
  
          self.assertSequenceEqual(
              tableset1[name].rows[0],
              tableset2[name].rows[0],
              tableset3[name].rows[0],
          )
          self.assertSequenceEqual(
              tableset1[name].rows[1],
              tableset2[name].rows[1],
              tableset3[name].rows[1],
          )
          self.assertSequenceEqual(
              tableset1[name].rows[2],
              tableset2[name].rows[2],
              tableset3[name].rows[2],
          )
  
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 11 for calling the TestTableSet obj's underlying member method code with example usage: obj.test_from_json_file() without return types