{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "title": "Metadata",
  "type": "object",
  "additionalProperties": {
    "type": "string",
    "description": "More layer-specific metadata as a valid Json Object, the key-value only support string:string (key:value)."
  },
  "description": "Represents Metadata.",
  "properties": {
  }
}