json_schema: {
      "title": "lod",
      "type": "object",
      "$schema": "http://json-schema.org/draft-04/schema",
      "properties": {
          "level": {
              "type": "integer",
              "description": "ID for each level."
          },
          "levelValue": {
              "type": "string",
              "description": "String to be used when constructing URL to access a tile from this LOD."
          },
          "resolution": {
              "type": "number",
              "description": "Resolution in map units of each pixel in a tile for each level."
          },
          "scale": {
              "type": "number",
              "description": "Scale for each level."
          }
      },
      "additionalProperties": false
  }