def test_cached_by_arn(self, patched_env, patched_resource,
patched_client):
"""
Test the cached_by_arn function
"""
from chalicelib import cache
cache.cached_by_arn(ARN)
def cached_by_arn(arn):
"""
API entry point to retrieve items from the cache by arn.
"""
return cache.cached_by_arn(arn)