@spartacus/storefront/cms-structure/seo/structured-data/builders/schema.interface.d.ts

Spartacus Storefront is a package that you can include in your application, which allows you to add default storefront features.

import { Observable } from 'rxjs';
export interface SchemaBuilder {
    build(): Observable<{}>;
}
export interface JsonLdBuilder<T> {
    build(data: T): Observable<{}>;
}