# PermissionDefThe **PermissionDef** module provides permission details defined in the configuration file.> **NOTE**>> The initial APIs of this module are supported since API version 8. Newly added APIs will be marked with a superscript to indicate their earliest API version.
| Name | Type | Readable| Writable| Description || -------------- | ------ | ---- | ---- | -------------- || permissionName | string | Yes | No | Name of the permission. |
| grantMode | number | Yes | No | Grant mode of the permission. The value **0** means that the system automatically grants the permission after the application installation, and **1** means that the application needs to dynamically request the permission from the user.|