src/helpers/ConfigurationUpdater.php
protected function getConfigurables($ignoreCache = false)
    {
        if (count($this->_configurables) === 0 || true === $ignoreCache) {
            $this->_configurables = ExtensionsHelper::getConfigurables();
        }
    }
protected function getConfigurables($ignoreCache = false)
    {
        if (count($this->_configurables) === 0 || true === $ignoreCache) {
            $this->_configurables = ExtensionsHelper::getConfigurables();
        }
    }
Returns configurables sections.
Loads them from files if not loaded.
@param bool $ignoreCache