code: def test_join_column_does_not_exist(self):
      with self.assertRaises(KeyError):
          self.left.join(self.right, "one", "seven")
  
imports: from agate import Table
  from agate.data_types import Number, Text
  from agate.testcase import AgateTestCase
label_desc: Use image node_id 9 for calling the TestJoin obj's underlying member method code with example usage: obj.test_join_column_does_not_exist() without return types