| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| github.com/spf13/pflag | Package pflag is a drop-in replacement for Go's flag package, implementing POSIX/GNU-style --flags. |
| k8s.io/cluster-bootstrap/token/api | Package api (k8s.io/cluster-bootstrap/token/api) contains constants and types needed for bootstrap tokens as maintained by the BootstrapSigner and TokenCleaner controllers (in k8s.io/kubernetes/pkg/controller/bootstrap) |
| k8s.io/component-base/cli/flag | |
| k8s.io/kubernetes/cmd/kubeadm/app/apis/bootstraptoken/v1 | |
| k8s.io/kubernetes/cmd/kubeadm/app/apis/kubeadm/v1beta3 | Package v1beta3 defines the v1beta3 version of the kubeadm configuration file format. |
| k8s.io/kubernetes/cmd/kubeadm/app/constants | |
| k8s.io/kubernetes/cmd/kubeadm/app/features | |
| strings | Package strings implements simple functions to manipulate UTF-8 encoded strings. |