How to use the @loopback/repository.createHasManyInclusionResolver function in @loopback/repository

withCrudCtx(async function setupRepository(ctx: CrudTestContext) {
          categoryRepo = new repositoryClass(Category, ctx.dataSource);
          itemRepo = new repositoryClass(Item, ctx.dataSource);

          if (!hasInclusionResolvers(categoryRepo)) {
            throw new Error(
              `Repository class "${categoryRepo.constructor.name}" must provide a public "inclusionResolvers" property`,
            );
          }

          const itemsMeta = Category.definition.relations.items;
          const itemsResolver = createHasManyInclusionResolver(
            itemsMeta as HasManyDefinition,
            async () => itemRepo,
          );
          categoryRepo.inclusionResolvers.set('items', itemsResolver);

          await ctx.dataSource.automigrate([Category.name, Item.name]);
        }),
      );