def wait_until(self, callback, timeout=10):
        from selenium.webdriver.support.wait import WebDriverWait
        WebDriverWait(self.selenium, timeout).until(callback)
Creates and adds a new instance.Instance to the Module.
dataset/ETHPy150Open cloudera/hue/desktop/core/ext-py/Django-1.6.10/django/contrib/admin/tests.py/AdminSeleniumWebDriverTestCase.wait_until--crossover with--dataset/ETHPy150Open GoogleCloudPlatform/python-compat-runtime/appengine-compat/exported_appengine_sdk/google/appengine/tools/devappserver2/module.py/ExternalModule._add_instance