Google 搜索关键词热度趋势

{
  "type": "object",
  "required": [
    "request"
  ],
  "properties": {
    "request": {
      "type": "object",
      "required": [
        "keywords",
        "location_code"
      ],
      "properties": {
        "keywords": {
          "type": "array",
          "items": {
            "type": "string",
            "maxLength": 256,
            "minLength": 1
          },
          "maxItems": 2,
          "minItems": 1
        },
        "location_code": {
          "type": "integer",
          "maximum": 100000000,
          "minimum": 1
        }
      },
      "additionalProperties": false
    }
  },
  "additionalProperties": false
}