{
  "namespace": "HDL",
  "counter": {
    "field": "counter",
    "type": "integer",
    "start": "0",
    "step": "1"
  },
  "state": {
    "field": "state",
    "type": "enum",
    "values": ["begin","end","error"]
  },
  "request": {
    "field": "request",
    "type": "string"
  },
  "time_begin": {
    "field": "time_begin",
    "type": "time"
  },
  "time_end": {
    "field": "time_end",
    "type": "time"
  },
  "time_error": {
    "field": "time_error",
    "type": "time"
  },
  "error_message": {
    "field": "error_message",
    "type": "string"
  }
}