protected function getDefaultConfig($configKey)
{
return ['metadata_cache' => 'array', 'query_cache' => 'array', 'result_cache' => 'array', 'hydration_cache' => 'array', 'driver' => $configKey, 'auto_generate_proxy_classes' => true, 'proxy_dir' => 'data/cache/DoctrineEntityProxy', 'proxy_namespace' => 'DoctrineEntityProxy', 'entity_namespaces' => [], 'datetime_functions' => [], 'string_functions' => [], 'numeric_functions' => [], 'filters' => [], 'named_queries' => [], 'named_native_queries' => [], 'custom_hydration_modes' => [], 'naming_strategy' => null, 'default_repository_class_name' => null, 'repository_factory' => null, 'class_metadata_factory_name' => null, 'entity_listener_resolver' => null, 'second_level_cache' => ['enabled' => false, 'default_lifetime' => 3600, 'default_lock_lifetime' => 60, 'file_lock_region_directory' => '', 'regtions' => []], 'sql_logger' => null];
}