If election message is missing in the Flush request (neither id nor override is set), it will be good to send an error from server. A new error for this needs to be defined.
If override is set to FALSE, this should also be an error and a new value needs to be defined in FlushResponseError Reason enum.
https://github.com/openconfig/gribi/blob/386ca81f79d0c872be9667ec8021a48b4d870ee3/v1/proto/service/gribi.proto#L450
If election message is missing in the Flush request (neither id nor override is set), it will be good to send an error from server. A new error for this needs to be defined.
If override is set to FALSE, this should also be an error and a new value needs to be defined in FlushResponseError Reason enum.