{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "title": "summary of collector output",
  "description": "output summary",
  "type": "object",
  "properties": {
    "database_type": {
      "type" : "string"
    },
    "start_time": {
      "type" : "number"
    },
    "observation_time" :{
      "type" : "number"
    },
    "end_time": {
      "type" : "number"
    },
    "database_version": {
      "type" : "string"
    }
  },
  "required": [
    "database_type",
    "start_time",
    "observation_time",
    "end_time",
    "database_version"
  ]
}
