Use a 3rd party type in @effect/schema

import type { GridColProps } from "@mantine/core";

export const CollectionField = S.Struct({
    name: S.String,
    label: S.String,
    span: S.optional(GridColProps['span']) // Error - Type '(self: All) => optional<All>' is not assignable to type 'Schema.All | PropertySignature.All<PropertyKey>'.
});