The ld-optgroup component is a subcomponent for ld-select.
Please refer to the ld-select documentation for usage examples.
| Property | Attribute | Description | Type | Default | 
|---|---|---|---|---|
| disabled | disabled | Disables the whole option group. | boolean | undefined | 
| key | key | for tracking the node's identity when working with lists | string | number | undefined | 
| label(required) | label | The name of the group of options. | string | undefined | 
| ref | ref | reference to component | any | undefined | 
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