| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| k8s.io/kubernetes/pkg/apis/core/validation | Package validation has functions for validating the correctness of api objects and explaining what is wrong with them when they aren't valid. |
| k8s.io/kubernetes/pkg/apis/policy/validation | |
| k8s.io/kubernetes/pkg/kubelet/container | |
| k8s.io/kubernetes/pkg/kubelet/lifecycle | Package lifecycle contains handlers for pod lifecycle events and interfaces to integrate with kubelet admission, synchronization, and eviction of pods. |
| strings | Package strings implements simple functions to manipulate UTF-8 encoded strings. |