const (
	// KeySource is the option key used by the gateway frontend to represent
	// the source for the external frontend
	KeySource = "source"

	KeyDevelDeprecated = "gateway-devel"
)

type Attestation = result.Attestation[solver.ResultProxy]

type CacheOptionsEntry = gw.CacheOptionsEntry

type Frontend interface {
	Solve(ctx context.Context, llb FrontendLLBBridge, exec executor.Executor, opt map[string]string, inputs map[string]*pb.Definition, sid string, sm *session.Manager) (*Result, error)
}

type FrontendLLBBridge interface {
	sourceresolver.MetaResolver
	Solve(ctx context.Context, req SolveRequest, sid string) (*Result, error)
	Warn(ctx context.Context, dgst digest.Digest, msg string, opts WarnOpts) error
}

type Result = result.Result[solver.ResultProxy]

type SolveRequest = gw.SolveRequest

type WarnOpts = gw.WarnOpts