| 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/moby/buildkit/frontend/gateway/pb | |
| github.com/opencontainers/go-digest | Package digest provides a generalized type to opaquely represent message digests and their operations within the registry. |
| github.com/pkg/errors | Package errors provides simple error handling primitives. |
| maps | Package maps defines various functions useful with maps of any type. |
| sync | Package sync provides basic synchronization primitives such as mutual exclusion locks. |