1# utils<a name="EN-US_TOPIC_0000001078403148"></a> 2 3## Introduction<a name="section11660541593"></a> 4 5The **utils** repository provides ndk_libraries_config and system functions. 6 7## Directory Structure<a name="section17271017133915"></a> 8 9``` 10utils 11├── native # Utility class implementation at the Native layer 12├── ndk_libraries_config # Configuration of the NDK library 13└── system # System-related predefined values and security policy configuration 14``` 15 16## Usage<a name="section137421544135015"></a> 17 18For details, see the API Reference. 19 20## Repositories Involved<a name="section1249817110914"></a> 21 22Utils subsystem 23 24**utils** 25 26utils\_native 27 28[utils\_native\_lite](https://gitee.com/openharmony/utils_native_lite) 29 30