Imports
- github.com/luci/gae/service/memcache
- github.com/luci/luci-go/common/errors
- github.com/luci/luci-go/common/logging
- github.com/luci/luci-go/luci_config/server/cfgclient/backend
- github.com/luci/luci-go/luci_config/server/cfgclient/backend/caching
- golang.org/x/net/context