| archive/zip | Package zip provides support for reading and writing ZIP archives. |
| bytes | Package bytes implements functions for the manipulation of byte slices. |
| context | Package context defines the Context type, which carries deadlines, cancellation signals, and other request-scoped values across API boundaries and between processes. |
| cuelabs.dev/go/oci/ociregistry | Package ociregistry provides an abstraction that represents the capabilities provided by an OCI registry. |
| cuelabs.dev/go/oci/ociregistry/ociref | Package ociref supports parsing cross-registry OCI registry references. |
| cuelang.org/go/internal/mod/semver | Package semver implements comparison of semantic version strings. |
| cuelang.org/go/mod/modfile | Package modfile provides functionality for reading and parsing the CUE module file, cue.mod/module.cue. |
| cuelang.org/go/mod/module | Package module defines the Version type along with support code. |
| cuelang.org/go/mod/modzip | Package modzip provides functions for creating and extracting module zip files. |
| encoding/json | Package json implements encoding and decoding of JSON as defined in RFC 7159. |
| errors | Package errors implements functions to manipulate errors. |
| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| github.com/opencontainers/go-digest | Package digest provides a generalized type to opaquely represent message digests and their operations within the registry. |
| github.com/opencontainers/image-spec/specs-go | |
| github.com/opencontainers/image-spec/specs-go/v1 | |
| io | Package io provides basic interfaces to I/O primitives. |
| net/http | Package http provides HTTP client and server implementations. |
| strings | Package strings implements simple functions to manipulate UTF-8 encoded strings. |
| time | Package time provides functionality for measuring and displaying time. |