ekuiper-new/internal/schema/test/test3.proto

message DrivingData {
  optional DrvgMod drvg_mod = 1;
  optional double average_speed = 2;
  optional BrkPedalStatus brk_pedal_sts = 3;

  message BrkPedalStatus {
    optional BrkPedalValid valid = 1;
  }

  enum BrkPedalValid {
    BRK_PED_VALID = 0;
    BRK_PED_INVALID = 1;
  }

  enum DrvgMod {
    AUTO_MODE = 0;
    ECO_MODE = 1;
    SPORT_MODE = 2;
  }
}