| context | Package context defines the Context type, which carries deadlines, cancellation signals, and other request-scoped values across API boundaries and between processes. |
| encoding/json | Package json implements encoding and decoding of JSON as defined in RFC 7159. |
| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| go.etcd.io/etcd/clientv3 | clientv3 is the official Go etcd client for v3. |
| go.etcd.io/etcd/pkg/transport | Package transport implements various HTTP transport utilities based on Go net package. |
| google.golang.org/grpc | Package grpc implements an RPC system called gRPC. |
| k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1 | Package v1 is the v1 version of the API. |
| k8s.io/apimachinery/pkg/apis/meta/v1/unstructured | |
| k8s.io/apiserver/pkg/registry/generic | Package generic provides a generic object store interface and a generic label/field matching type. |
| k8s.io/apiserver/pkg/storage/storagebackend | |
| path | Package path implements utility routines for manipulating slash-separated paths. |
| time | Package time provides functionality for measuring and displaying time. |