Aura
This type represents an aura, buff, or debuff.
Members
The following are members of Aura. For example:
    print("duration: " .. some_aura.duration)
| Name | Description | Return Type | Tested? | 
|---|---|---|---|
| id | the id of the aura | number | No | 
| type | the dispel type of the aura (e.g. magic) | number | No | 
| target | the target of the aura | Unit | No | 
| caster | the caster of the aura | Unit | No | 
| stacks | aura's stack count | number | No | 
| duration | aura's remaining time, -1 if not found | number | No | 
| max_duration | aura's maximum duration | number | No | 
| charges | aura's charge count | number | No |