Imports of package checkpoint

PathSynopsis
fmtPackage fmt implements formatted I/O with functions analogous to C's printf and scanf.
github.com/docker/docker/api/types
github.com/docker/docker/cli
github.com/docker/docker/cli/command
github.com/spf13/cobraPackage cobra is a commander providing a simple interface to create powerful modern CLI interfaces.
golang.org/x/net/contextPackage context defines the Context type, which carries deadlines, cancellation signals, and other request-scoped values across API boundaries and between processes.
text/tabwriterPackage tabwriter implements a write filter (tabwriter.Writer) that translates tabbed columns in input into properly aligned text.