syntax = "proto3"; option go_package = "github.com/letsencrypt/boulder/grpc/test_proto"; import "google/protobuf/duration.proto"; service Chiller { // Sleep for the given amount of time, and return the amount of time slept. rpc Chill(Time) returns (Time) {} } message Time { // Next unused field number: 3 reserved 1; // previously timeNS google.protobuf.Duration duration = 2; }