RRG should support the [`GetClientStats`][stats-action] action. It accepts [`GetClientStatsRequest`][stats-request] as input and should respond with [`ClientStats`][stats-response]. Note that this action requires the statistics collection mechanism to be implemented in the first place. [stats-action]: https://github.com/google/grr/blob/f0c26b1e83e77a8f53f7b7aef706b418061682ae/grr/proto/grr_response_proto/jobs.proto [stats-request]: https://github.com/google/grr/blob/f0c26b1e83e77a8f53f7b7aef706b418061682ae/grr/proto/grr_response_proto/jobs.proto#L1389-L1405 [stats-response]: https://github.com/google/grr/blob/f0c26b1e83e77a8f53f7b7aef706b418061682ae/grr/proto/grr_response_proto/jobs.proto#L538-L558