code: def test_is_column_name_quoted(self):
      column_name = "mock"
      assert (
          PrestoEngineSpec._is_column_name_quoted(column_name) is False
      )
  
      column_name = '"mock'
      assert (
          PrestoEngineSpec._is_column_name_quoted(column_name) is False
      )
  
      column_name = '"moc"k'
      assert (
          PrestoEngineSpec._is_column_name_quoted(column_name) is False
      )
  
      column_name = '"moc"k"'
      assert (
          PrestoEngineSpec._is_column_name_quoted(column_name) is True
      )
  
imports: from collections import namedtuple
  from textwrap import dedent
  from unittest import mock, skipUnless
  import pandas
  from flask.ctx import AppContext
  from sqlalchemy import types
  from sqlalchemy.sql import select
  from superset.db_engine_specs.presto import PrestoEngineSpec
  from superset.errors import ErrorLevel, SupersetError, SupersetErrorType
  from superset.sql_parse import ParsedQuery
  from superset.utils.database import get_example_database
  from tests.integration_tests.db_engine_specs.base_tests import TestDbEngineSpec
label_desc: Use image node_id 27 for calling the TestPrestoDbEngineSpec obj's underlying member method code with example usage: obj.test_is_column_name_quoted() without return types