Imports of package cache

PathSynopsis
github.com/go-kit/kit/endpointPackage endpoint defines an abstraction for RPCs.
github.com/go-kit/kit/logPackage log provides a structured logger.
github.com/go-kit/kit/sdPackage sd provides utilities related to service discovery.
ioPackage io provides basic interfaces to I/O primitives.
sortPackage sort provides primitives for sorting slices and user-defined collections.
syncPackage sync provides basic synchronization primitives such as mutual exclusion locks.
sync/atomicPackage atomic provides low-level atomic memory primitives useful for implementing synchronization algorithms.