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# Factorio Runtime Docs Version 2.0.7

## Class LuaPermissionGroups

All permission groups.

## Members

create_group(name?) | → LuaPermissionGroup? | Creates a new permission group.
Creates a new permission group.
get_group(group) | → LuaPermissionGroup? | Gets the permission group with the given name or group ID.
Gets the permission group with the given name or group ID.
groups | :: R array[LuaPermissionGroup] | All of the permission groups.
All of the permission groups.
valid | :: R boolean | Is this object valid? [...]
Is this object valid? [...]
object_name | :: R string | The class name of this object. [...]
The class name of this object. [...]

## Methods

### create_group(name?) → LuaPermissionGroup?

Creates a new permission group.

#### Parameters

name | :: string? |

#### Return values

→ LuaPermissionGroup? | `nil` if the calling player doesn't have permission to make groups.

### get_group(group) → LuaPermissionGroup?

Gets the permission group with the given name or group ID.

#### Parameters

group | :: string or uint |

#### Return values

→ LuaPermissionGroup? | `nil` if there is no matching group.

## Attributes

### groups :: Read array[LuaPermissionGroup]

All of the permission groups.

### valid :: Read boolean

Is this object valid? This Lua object holds a reference to an object within the game engine. It is possible that the game-engine object is removed whilst a mod still holds the corresponding Lua object. If that happens, the object becomes invalid, i.e. this attribute will be `false`. Mods are advised to check for object validity if any change to the game state might have occurred between the creation of the Lua object and its access.

### object_name :: Read string

The class name of this object. Available even when `valid` is false. For LuaStruct objects it may also be suffixed with a dotted path to a member of the struct.