human
Complete the below
@pytest.fixture()
def get_fold_levels():

    ''''setup editor and return fold levels.'
    '''

What is a the Python code you requested?
assistant
#Here is the Python code you requested.
    app = qapplication()
    editor = CodeEditor(parent=None)
    editor.setup_editor(language='Python')
    text = '#    dummy    test    file\nclass    a():\n                self.b    =    1\n                print(self.b)\n                \n                def    some_method(self):\n                                self.b    =    3\n\n                def    other_method(self):\n\n        #    a    comment    with    arbitrary    indentation\n                                    a    =    (1,\n                                                        2,\n                                                        3)\n'
    editor.set_text(text)
    return print_tree(editor, return_list=True)