{
    "parameters": {
      "Region": {
        "type": "string",
        "builtIn": "AWS::Region",
        "required": false,
        "deprecated": {
          "message": "use blahdeblah region instead"
        }
      }
    },
    "rules": [
      {
        "documentation": "base rule",
        "conditions": [
          {
            "fn": "isSet",
            "argv": [
              {
                "ref": "Region"
              }
            ]
          }
        ],
        "endpoint": {
          "url": "https://{Region}.amazonaws.com",
          "properties": {
            "authSchemes": [
              {
                "name": "sigv4",
                "signingName": "serviceName",
                "signingRegion": "{Region}"
              }
            ]
          }
        },
        "type": "endpoint"
      }
    ],
    "version": "1.3"
  }