| 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. |
| github.com/containerd/containerd/containers | |
| github.com/containerd/containerd/content | |
| github.com/containerd/containerd/images | |
| github.com/containerd/containerd/snapshots | |
| github.com/opencontainers/image-spec/specs-go/v1 | |
| github.com/opencontainers/runtime-spec/specs-go | |
| strings | Package strings implements simple functions to manipulate UTF-8 encoded strings. |