syntax = "proto2"; import "google/protobuf/descriptor.proto"; message RangeProto { optional int32 start = 1; optional int32 step = 2 [default = 1]; optional int32 end = 3; repeated int32 also = 4; } extend google.protobuf.FieldOptions { optional string help = 50000; } enum IndexMode { INDEXMODE_DRIVE = 0; INDEXMODE_300 = 1; INDEXMODE_360 = 2; }