Imports of package drivers

PathSynopsis
fmtPackage fmt implements formatted I/O with functions analogous to C's printf and scanf.
github.com/moby/swarmkit/v2/api
github.com/moby/swarmkit/v2/api/namingPackage naming centralizes the naming of SwarmKit objects.
github.com/moby/swarmkit/v2/node/plugin