Function create_cache_with_policy 

pub async fn create_cache_with_policy(
    config: &CacheConfig,
    failure_policy: CacheBackendFailurePolicy,
) -> Result<Arc<dyn CacheBackend>>

Creates a cache backend with an explicit construction-failure policy.

Errors

Returns CacheError when the requested backend is unsupported or Redis initialization fails and CacheBackendFailurePolicy::ReturnError is selected.