| context | Package context defines the Context type, which carries deadlines, cancellation signals, and other request-scoped values across API boundaries and between processes. |
| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| k8s.io/apimachinery/pkg/api/errors | |
| k8s.io/apimachinery/pkg/apis/meta/v1 | |
| k8s.io/apimachinery/pkg/util/clock | |
| k8s.io/apimachinery/pkg/util/runtime | |
| k8s.io/apimachinery/pkg/util/wait | |
| k8s.io/client-go/tools/leaderelection/resourcelock | |
| k8s.io/klog | Package klog implements logging analogous to the Google-internal C++ INFO/ERROR/V setup. |
| net/http | Package http provides HTTP client and server implementations. |
| reflect | Package reflect implements run-time reflection, allowing a program to manipulate objects with arbitrary types. |
| sync | Package sync provides basic synchronization primitives such as mutual exclusion locks. |
| time | Package time provides functionality for measuring and displaying time. |