public async Task SetAsync_And_ExistsAsync_Should_Succeed()
{
var cacheKey = $"{_namespace}_{Guid.NewGuid().ToString()}";
await hybridCaching_1.SetAsync(cacheKey, "val", TimeSpan.FromSeconds(30));
var res = await hybridCaching_1.ExistsAsync(cacheKey);
Assert.True(res);
}