added isSkill condition authored by Lxlp's avatar Lxlp
## Description
Checks how many children the caster has.
## Attributes
| Attribute | Aliases | Description | Default |
|-----------|-----------|----------------------------------------------------------------------|---------|
| amount | a | The amount of children to check for. Can accept ranged values. | 1 |
## Examples
```yaml
Conditions:
- children{a=1} true
```
```yaml
Conditions:
- children{a=>2} true
```
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