syntax = "proto3"; import "nanopb.proto"; message MyMessage1 { option (nanopb_msgopt).msgid = 1; int32 intvalue = 1; } message MyMessage2 { option (nanopb_msgopt).msgid = 2; int32 intvalue = 1; string strvalue = 2 [(nanopb).max_size = 16]; } message MyMessage3 { option (nanopb_msgopt).msgid = 3; bool boolvalue = 1; }