Override property type in child?

[round stratus]

The parent component defines a property

foo: any;
```I'm extending this component, and I want to specify the type as `number`. 
Is there a way to do this without creating another property with a desired type and assigning the parent one to the new one? Thanks.

[copper brook]

i'm not sure what kind of component you're using, but if it's something class-based then you can just specify foo: number in the child class: