Is there a way to mark a field so that it needs to be overwritten by .extend calls?

[stevenliebregt]

Hi,

I'm looking to have a base object with some keys that need to be overwritten by any .extend objects, but am not sure how to do this.

export const baseEventSchema = z.object({
    timestamp: z.string(),
    category: ..., // Needs to be overwritten by any extending schema
    action: ..., // Needs to be overwritten by any extending schema
});

So that having for example this, where action is not overwritten, it would fail to compile

export const someOtherEventSchema = baseEventSchema.extend({
    category: z.literal('some_literal'),
    // Note: action is missing, should not compile
});