{
  "Route": {
    "DestinationCidrBlock": "string",
    "TransitGatewayAttachments": [
      {
        "ResourceId": "string",
        "TransitGatewayAttachmentId": "string",
        "ResourceType": "vpc"
      }
    ],
    "Type": "propagated",
    "State": "deleted"
  }
}