| context | Package context defines the Context type, which carries deadlines, cancellation signals, and other request-scoped values across API boundaries and between processes. |
| github.com/distribution/reference | Package reference provides a general type to represent any way of referencing images within the registry. |
| github.com/moby/buildkit/solver/pb | |
| github.com/moby/buildkit/sourcepolicy/pb | |
| github.com/moby/buildkit/util/imageutil | |
| 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/v1 | |
| github.com/pkg/errors | Package errors provides simple error handling primitives. |
| strings | Package strings implements simple functions to manipulate UTF-8 encoded strings. |