code: def init_instance_fixtures(self):
      super(CmdLineTestCase, self).init_instance_fixtures()
  
file_path: zipline/tests/test_cmdline.py
imports: import mock
  import zipline.__main__
  import zipline
  from zipline.testing import ZiplineTestCase
  from zipline.testing.fixtures import WithTmpDir
  from zipline.testing.predicates import assert_equal, assert_raises_str
  from click.testing import CliRunner
  from zipline.extensions import Namespace, create_args, parse_extension_arg
label_desc: Use image node_id 1 for calling the CmdLineTestCase obj's underlying member method code with example usage: obj.init_instance_fixtures() without return types