RRG should support the [`FingerprintFile`][fingerprint-action] action. It accepts [`FingerprintRequest`][fingerprint-request] as input and should respond with [`FingerprintResponse`][fingerprint-response]. [fingerprint-action]: https://github.com/google/grr/blob/f0c26b1e83e77a8f53f7b7aef706b418061682ae/grr/client/grr_response_client/client_actions/file_fingerprint.py#L28-L97 [fingerprint-request]: https://github.com/google/grr/blob/f0c26b1e83e77a8f53f7b7aef706b418061682ae/grr/proto/grr_response_proto/jobs.proto#L1053-L1060 [fingerprint-response]: https://github.com/google/grr/blob/f0c26b1e83e77a8f53f7b7aef706b418061682ae/grr/proto/grr_response_proto/jobs.proto#L1063-L1072