How to use the @spartacus/core.DeferLoadingStrategy.INSTANT function in @spartacus/core

private shouldLoadInstantly(
    elementLoadingStrategy: DeferLoadingStrategy
  ): boolean {
    return (
      isPlatformServer(this.platformId) ||
      elementLoadingStrategy === DeferLoadingStrategy.INSTANT ||
      (elementLoadingStrategy !== DeferLoadingStrategy.DEFER &&
        this.globalLoadStrategy === DeferLoadingStrategy.INSTANT)
    );
  }
}

private useInstantLoading(): boolean {
    return (
      this.config.deferredLoading &&
      this.config.deferredLoading.strategy === DeferLoadingStrategy.INSTANT
    );
  }

constructor(
    @Inject(PLATFORM_ID) private platformId: Object,
    protected config: LayoutConfig,
    protected intersectionService: IntersectionService
  ) {
    this.globalLoadStrategy = config.deferredLoading
      ? config.deferredLoading.strategy
      : DeferLoadingStrategy.INSTANT;
  }

private shouldLoadInstantly(
    elementLoadingStrategy: DeferLoadingStrategy
  ): boolean {
    return (
      isPlatformServer(this.platformId) ||
      elementLoadingStrategy === DeferLoadingStrategy.INSTANT ||
      (elementLoadingStrategy !== DeferLoadingStrategy.DEFER &&
        this.globalLoadStrategy === DeferLoadingStrategy.INSTANT)
    );
  }
}