Imports
- github.com/go-kit/kit/log
- github.com/improbable-eng/thanos/pkg/block/metadata
- github.com/improbable-eng/thanos/pkg/runutil
- github.com/oklog/ulid
- github.com/pkg/errors
- github.com/prometheus/tsdb
- github.com/prometheus/tsdb/labels
- github.com/prometheus/tsdb/testutil
- golang.org/x/sync/errgroup