1syntax = "proto3"; 2 3package testpb; 4 5message FooRequest { 6 bool fail = 1; 7 int64 sleep_nanos = 2; 8} 9 10message FooResponse { 11} 12 13service Foo { 14 rpc Single(FooRequest) returns (FooResponse); 15 rpc Multiple(stream FooRequest) returns (stream FooResponse); 16}