# TPCB\_LayerTypesOfInnerLayer type

内层允许设置的图层类型

## Signature

```typescript
type TPCB_LayerTypesOfInnerLayer = EPCB_LayerType.SIGNAL | EPCB_LayerType.INTERNAL_ELECTRICAL;
```
## References


[EPCB\_LayerType.SIGNAL](../enums/EPCB_LayerType.md)<!-- -->, [EPCB\_LayerType.INTERNAL\_ELECTRICAL](../enums/EPCB_LayerType.md)