This is a slightly modified copy of hashicorp/boundary internal timestamp proto type with scanners:

• https://github.com/hashicorp/boundary/blob/034f27ec8528251ce23b5afbf3851c48b0c54bec/internal/proto/controller/storage/timestamp/v1/timestamp.proto
• https://github.com/hashicorp/boundary/tree/034f27ec8528251ce23b5afbf3851c48b0c54bec/internal/db/timestamp

The code copied from the hashicorp/boundary project is licensed under the Mozilla Public License, version 2.0.