message MessageWithMap { map<int32, string> name_mapping = 1; map<sint64, FloatingPoint> msg_mapping = 2; map<bool, bytes> byte_mapping = 3; } message FloatingPoint { double f = 1; } message Uint128Pair { bytes left = 1 [(gogoproto.nullable) = false, (gogoproto.customtype) = "github.com/gogo/protobuf/test/custom.Uint128"]; bytes right = 2 [(gogoproto.customtype) = "github.com/gogo/protobuf/test/custom.Uint128"]; } message ContainsNestedMap { message NestedMap { map<string, double> NestedMapField = 1; } } message NotPacked { repeated uint64 key = 5 [packed=false]; }